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How many bathrooms Ohio houses have, and when the census stopped counting

The last time a government counted the bathrooms in Ohio's houses was the 1980 census, and in that count two homes in three inside the city of Columbus had exactly one complete bathroom. Nobody has counted since: the decennial census dropped the question after 1980, the American Community Survey has never asked it, and the American Housing Survey's metropolitan sample covers Cincinnati and Cleveland but not Columbus. This page gives the 1980 figures for the city, Franklin County, Delaware County and the state, the Census Bureau's own definitions of what it was counting, and what the Bureau's separate count of new houses has done since 1973. Every figure here is the Census Bureau's own.

Last updated September 2026 · The 1980 counts, the new-house series and the year-built shares are the Census Bureau's own, read September 2026 · No prices on this page; the Estimate Builder carries those · Part of the knowledge base

The last time anyone counted

The 1980 census asked how many bathrooms a home had, and it was the last census that did. The Census Bureau published Ohio's answer in a state volume issued in July 1983, and the figures below come from three tables in it: Table 61 for the state, Table 74 for the city of Columbus and Table 94 for the counties. The universe is the same in all three: year-round housing units, counted as estimates based on a sample rather than as a complete enumeration. The percentages are computed from the tables' own counts.

Area, 1980 censusYear-round housing unitsNo bathroom or only a half bathOne complete bathroomOne complete plus half bath(s)Two or more complete bathrooms
City of Columbus236,5654,221 (1.8 percent)159,442 (67.4 percent)42,876 (18.1 percent)30,026 (12.7 percent)
Franklin County347,0195,118 (1.5 percent)208,023 (59.9 percent)68,460 (19.7 percent)65,418 (18.9 percent)
Delaware County18,779431 (2.3 percent)10,072 (53.6 percent)3,079 (16.4 percent)5,197 (27.7 percent)
Ohio4,078,064102,119 (2.5 percent)2,513,344 (61.6 percent)745,844 (18.3 percent)716,757 (17.6 percent)

The shape of 1980 is in the middle columns. In the city of Columbus the Census Bureau put 159,442 of 236,565 year-round homes, about 67 percent, at exactly one complete bathroom, and only 30,026 of them, about 13 percent, at two or more. Franklin County as a whole was a little better supplied, at about 60 percent with one complete bathroom and about 19 percent with two or more. Delaware County was ahead of both, with 5,197 of its 18,779 homes, about 28 percent, at two or more. Ohio sat between the city and its newer suburbs: about 62 percent of the state's 4,078,064 year-round homes had one complete bathroom and about 18 percent had two or more. The 1980 lines for Delaware, Licking and Fairfield counties from the same table are on the page on those three counties' houses by the numbers.

The bottom category is not only about missing fixtures. The Census Bureau still recorded 102,119 Ohio homes, about 2 percent, with no bathroom or only a half bath in 1980, and by that table's own definition it also holds a home whose one bathroom was shared with another household.

Two of the printed totals in the surviving scan of that volume are damaged. Each was recovered as the only value that makes the table's own four bathroom categories sum to its total, and in both cases the recovered figure matches a second table in the same report. Every panel above sums exactly to its own total.

The same report carries one more panel, for the Columbus metropolitan area as the Census Bureau drew it in 1980, where 83,454 of 425,793 year-round homes, about 20 percent, had two or more complete bathrooms. That boundary is a 1980 Standard Metropolitan Statistical Area, not today's metropolitan definition, and the report does not list the counties inside it, so no county list is offered here.

What counts as a bathroom, and in whose count

Three Census Bureau counts of bathrooms are in print, and each defines the word differently. The differences decide whether a house is a one-bathroom house or a two-bathroom house on the page a reader happens to be looking at.

In the 1980 census a complete bathroom had to be a room with a flush toilet, a bathtub or shower, and a wash basin with piped hot and cold water, for the exclusive use of the people living there. The report's own appendix adds a wrinkle: the questionnaire never mentioned hot water, and the hot-water requirement was applied afterward, in an edit that combined the bathroom item with the complete-plumbing item. The same appendix says a home whose only bathroom was also for the use of another household was put in the bottom category, the one labeled no bathroom or only a half bath.

In the Census Bureau's Survey of Construction, which is where every new-house figure on this page comes from, a full bathroom is a room with a washbasin, a toilet, and either a bathtub or a shower, and a half bathroom has a toilet, a bathtub or a shower but not everything a full bathroom needs. Then comes the rule that misleads more people than any other number in this subject: the Census Bureau counts a new house with one full bathroom and two half bathrooms as a two-bathroom house. Two halves are added together into one. A house the Bureau counts as a two-bathroom house may have exactly one room in it a person can shower in, which is worth remembering whenever a bathroom count is quoted.

In the American Housing Survey, the survey of occupied homes the Census Bureau runs with the Department of Housing and Urban Development, a bathroom is complete when a room or adjoining areas hold a flush toilet, a bathtub or shower, and a sink. That wording allows adjoining areas where the construction survey wants a single room. Three definitions, three universes, and no honest way to draw them as one line.

Nobody has counted an Ohio bathroom since 1980

The item did not fade out. It stopped. The Census Bureau's own list of the 1990 census housing questions runs through bedrooms, plumbing facilities and kitchen facilities and never asks about bathrooms; the word does not appear on that page at all. The Bureau's 1990 Detailed Housing Characteristics report for Ohio carries no bathrooms table, its subject index passes straight from kitchen facilities to plumbing facilities, and the single place the word appears in the whole report is inside the definition of what to leave out of a room count. The 2000 census did not ask either: its long form named bathrooms once, in the question about rooms, as something not to count.

Nor does the survey that replaced the long form. In the American Community Survey the Census Bureau mentions bathrooms only among the spaces excluded from a home's room count, and that is the one use of the word in the whole subject-definitions document. The Bureau does still count complete plumbing facilities, which is a different question with a long Ohio record of its own; that record belongs to the page on how and when Ohio homes got indoor plumbing and is not repeated here.

One current survey does count bathrooms, and it does not reach Columbus. The 2023 American Housing Survey published metropolitan estimates for twenty areas, and the two Ohio areas in it are Cincinnati and Cleveland. Ohio is one of nine states that survey identifies, and the Census Bureau flags every one of them as identified only on the file it keeps internally, so no Ohio bathroom estimate can be built from the public data. That is the plain state of the record: any current figure for bathrooms per house in Ohio or in Columbus is somebody's estimate, not a government count. The Franklin County Auditor's record of bathrooms by the decade a house was built is an administrative record rather than a survey, and it is set out on the bathroom page. The same auditor record also codes each house's style, a field the page about telling a Central Ohio house's era and style reads by decade built.

How the question was asked, 1960 to 1990

The wording changed at every census that asked it. In 1960 the Census Bureau asked how many bathrooms are in the house or apartment, and sorted the answers into four groups: no bathroom or only a partial one, one complete bathroom, one complete plus partial ones, and two or more complete. In 1970 the question went to a sample of households rather than to everyone, and read how many bathrooms, partial and complete, do you have. In 1980 the long form asked simply how many bathrooms do you have, again of a sample, which is why the Ohio tables above are estimates rather than a full count. In 1990 there was no such question.

Two things follow from those four lines. The category the modern surveys call one and a half bathrooms never existed in the decennial census: the census counted complete bathrooms and partial or half ones separately, so a chart showing a census row for one and a half bathrooms is showing something the Census Bureau never printed. And the vocabulary moved, from partial in 1960 and 1970 to half bath by 1980.

Ohio's 1960 and 1970 figures were printed at the time and could not be read for this page: the Census Bureau's scanned copies of both housing volumes are images with no text layer, so no 1960 or 1970 Ohio bathroom count appears above. That is a limit on what could be read here, not evidence that the count was never made.

New houses, 1973 to 2025

There is one continuous government series on bathrooms, and it counts only houses being built. Since 1973 the Census Bureau has published the number of bathrooms in new single-family houses completed each year, for the country and for four regions, in its Characteristics of New Housing; the 2025 figures were released on July 1, 2026. There is no Ohio row and no Columbus row in it. Ohio sits in the Bureau's twelve-state Midwest region, with Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, South Dakota and Wisconsin, so a Midwest figure describes twelve states at once and is not an Ohio figure.

The series opens with the change already well under way nationally. In 1973 the Census Bureau put 40 percent of new single-family houses completed nationally at one and a half bathrooms or fewer, which leaves 60 percent already at two or more in the first year published. The Midwest was behind that national picture: the Census Bureau put 56 percent of new Midwest houses at one and a half bathrooms or fewer that year, against 40 percent nationally. The Midwest share first fell below half in 1976, at 48 percent, and touched exactly 50 percent once more in 1982.

By 2025 the shares had moved a long way. The Census Bureau put 4 percent of new single-family houses completed nationally at one and a half bathrooms or fewer, and 9 percent in the Midwest. Of the new Midwest houses completed that year the Bureau put 36 percent at exactly two bathrooms, 31 percent at two and a half and 23 percent at three or more; nationally in the same year it put 30 percent at two and a half and 32 percent at three or more. The Midwest is well behind the country on three or more.

One caution before drawing that as a line. The Census Bureau published no separate three-or-more-bathrooms column before 1987, and the table's own footnote says the two-and-a-half column includes two and a half bathrooms or more for 1986 and earlier. A chart of the three-bathroom share that begins in 1973 is reading a merged category for its first fourteen years.

The homes people live in are a different picture

New houses are not the housing stock, and the distance between the two is the most useful thing on this page. The 2023 American Housing Survey counted 133,231,000 occupied homes in the country and put 40,283,000 of them at exactly one complete bathroom. Another 13,911,000 had one and a half, 42,607,000 had two, 18,194,000 had two and a half, 14,882,000 had three, and 3,219,000 had more than three. Adding the survey's own categories, about 41 percent of occupied American homes had one and a half complete bathrooms or fewer, and about 59 percent had two or more. The same survey still found 135,000 occupied homes with no complete bathroom at all.

Those figures and the new-house figures above come from two different surveys, with different universes and different definitions, and they should never share a sentence as though one followed the other. The construction survey counts houses finished in a year; the American Housing Survey counts occupied homes of every age. Both are the Census Bureau's, and neither converts into the other. What the pair shows, kept apart, is that a house with one and a half bathrooms or fewer is rare in new construction and ordinary in the housing that already exists.

The Midwest house has not been growing

An extra bathroom is often explained by a bigger house, and in the Midwest the floor area stopped cooperating with that explanation a decade ago. The Census Bureau's series puts the median floor area of a new single-family house completed in the Midwest at 1,445 square feet in 1973 and 1,969 square feet in 2025, with the largest Midwest figure in the whole series at 2,400 square feet in 2014. The Midwest median has been smaller than that 2014 peak in every one of the eleven years since, while bathroom counts stayed high. Reading those two series together is an inference rather than a finding either of them states: the second and third bathroom in a new Midwest house appear to be coming out of the same floor area, not out of additional floor area.

How old the houses are in Central Ohio

The 1980 count describes a stock that is largely still standing, and the Census Bureau's American Community Survey says how much of it. In the 2024 five-year estimates, 3,353,331 of Ohio's 5,292,391 homes, about 63 percent, were built in 1979 or earlier, and 1,005,529 of them, about 19 percent, were built in 1939 or earlier. In Franklin County the same survey puts 306,426 of 595,469 homes, about 51 percent, at 1979 or earlier. The fuller version of that table, and what the age of a house means for the materials inside it, is on the page about lead paint and asbestos in a pre-1978 bathroom.

Put the two records side by side and an inference follows, which is worth labeling as one. More than half of Franklin County's homes were finished in 1979 or earlier, and in the Midwest the share of new single-family houses completed with one and a half bathrooms or fewer only fell below half in 1976. So most of the county's housing was built before a second bathroom became usual in a new Midwest house. Two cautions travel with that sentence. The Midwest is twelve states and not Ohio. And a bathroom added to a house after that count leaves no mark on either series, because nobody publishes a count of bathrooms added to existing Ohio homes.

What that means for the hall bath

The practical version of all this is one room. In a Central Ohio house built between the 1950s and the 1990s, the single complete bathroom the 1980 census counted is usually the hall bathroom, about five feet by seven or eight, with the tub against the far wall; the five-by-eight page measures that room and says what fits in it. Where it is the only complete bathroom in the house, replacing the tub with a shower leaves the house with no bathtub, which is a different decision from the same change in a house with two bathrooms. The resale page takes up the one-bathroom case, and the conversion page covers the work itself.

The short version. The 1980 census was the last count of bathrooms in Ohio homes. It put about 67 percent of homes in the city of Columbus at exactly one complete bathroom and about 13 percent at two or more. No survey has counted since: the decennial census dropped the question after 1980, the American Community Survey has never asked it, and the American Housing Survey publishes Cincinnati and Cleveland but not Columbus. In new construction the Census Bureau's own series shows the change it missed, from 56 percent of new Midwest houses completed with one and a half bathrooms or fewer in 1973 to 9 percent in 2025. In the homes people actually live in, about 41 percent are still at one and a half or fewer.

Sources

Every figure, date and quotation on this page comes from one of these documents, read on the date given. Where two of them disagree, the page says so.

Common questions

How many bathrooms did a Columbus house have in 1980?

In the 1980 census, the last one that asked, the Census Bureau counted 236,565 year-round homes in the city of Columbus and put 159,442 of them, about 67 percent, at exactly one complete bathroom. Another 42,876 had one complete bathroom plus a half bath, and only 30,026, about 13 percent, had two or more complete bathrooms. Franklin County as a whole ran about 60 percent at one complete bathroom and about 19 percent at two or more. Those are the Census Bureau's own figures for year-round housing units, published as estimates based on a sample.

Is there a current count of bathrooms per house in Ohio?

No. The decennial census asked how many bathrooms a home had for the last time in 1980, and the American Community Survey that replaced the census long form has never asked it; the Census Bureau mentions bathrooms in that survey only among the spaces left out of a room count. The American Housing Survey does count bathrooms, but its 2023 metropolitan estimates cover twenty areas, of which the Ohio ones are Cincinnati and Cleveland, and it identifies Ohio only on a file the Census Bureau keeps internally. Any current bathroom figure for Ohio is an estimate rather than a government count.

When did the census stop asking how many bathrooms a house has?

After 1980. The Census Bureau asked the question in 1960, in 1970 and in 1980, and the wording changed each time, from how many bathrooms are in the house or apartment in 1960 to how many bathrooms do you have in 1980. The Bureau's own list of 1990 census housing questions runs through bedrooms, plumbing facilities and kitchen facilities without asking about bathrooms, and its 1990 housing report for Ohio carries no bathrooms table. The 2000 census long form named bathrooms once, as something not to count as a room.

Does a house with one full bathroom and two half baths count as having two bathrooms?

In the Census Bureau's construction survey, yes. Its definitions say a full bathroom is a room with a washbasin, a toilet, and either a bathtub or a shower, that a half bathroom has a toilet, a bathtub or a shower but not everything a full bathroom needs, and that a new house with one full bathroom and two half bathrooms is counted as a two-bathroom house. Two halves are added together into one. So a house reported as having two bathrooms in that survey may have only one room in it a person can shower in.

How many new houses in the Midwest are built with two or more bathrooms?

Almost all of them now. In the Census Bureau's Characteristics of New Housing, 9 percent of new single-family houses completed in the Midwest in 2025 had one and a half bathrooms or fewer, against 56 percent in 1973. Of the 2025 Midwest houses the Bureau put 36 percent at exactly two bathrooms, 31 percent at two and a half and 23 percent at three or more. The Midwest in that survey is twelve states from Ohio to North Dakota, and it carries no Ohio row and no Columbus row, so the figure is regional rather than local.

How many homes in the country have only one complete bathroom?

About 40 million. The 2023 American Housing Survey, run by the Census Bureau with the Department of Housing and Urban Development, counted 133,231,000 occupied homes and put 40,283,000 of them at exactly one complete bathroom, with another 13,911,000 at one and a half. Adding the survey's own categories, about 41 percent of occupied American homes had one and a half complete bathrooms or fewer and about 59 percent had two or more. The same survey still found 135,000 occupied homes with no complete bathroom. It counts existing homes, not new construction, and the two are not comparable.

Did Delaware County homes have more bathrooms than Franklin County homes in 1980?

Yes, on the Census Bureau's count. In 1980 the Bureau put 5,197 of Delaware County's 18,779 year-round homes, about 28 percent, at two or more complete bathrooms, against about 19 percent in Franklin County and about 13 percent in the city of Columbus. Delaware County also had a smaller share at exactly one complete bathroom, about 54 percent against about 60 percent in Franklin County. And 1980 is the last year in which any government count of that split exists.

Are new houses in the Midwest getting bigger?

Not lately. The Census Bureau's series puts the median floor area of a new single-family house completed in the Midwest at 1,445 square feet in 1973 and 1,969 square feet in 2025, with the largest figure in the whole series at 2,400 square feet in 2014. The Midwest median has been smaller than that 2014 peak in every one of the eleven years since. Bathroom counts did not follow it down, so read together the two series suggest the extra bathrooms in a new Midwest house are coming out of the same floor area rather than additional floor area, an inference rather than a finding either series states.

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