How old are the homes in Williamsport, IN?

61.3% (±9.5 points) of the homes in Williamsport, IN were built before 1980 (2020–2024 American Community Survey).

25.7% were built before 1940.

2.8% were built in 2010 or later.

Figures last updated on .

Built before 1980
61.3% (±9.5 points)
Built before 1940
25.7%
Built 2010 or later
2.8%

When the homes in Williamsport were built

Housing units by year structure built, 2020–2024
Year builtWilliamsportWarren CountyIndianaUnited States
2020 or later0.4% (±0.5 points)1.0%1.7%2.0%
2010 to 20192.4% (±2.2 points)5.7%8.0%9.4%
2000 to 200911.1% (±5.3 points)11.8%12.3%13.6%
1990 to 199912.1% (±3.8 points)13.2%13.6%12.4%
1980 to 198912.7% (±5.1 points)10.4%9.5%12.9%
1970 to 197912.8% (±4.6 points)11.3%13.1%14.2%
1960 to 196916.1% (±4.6 points)12.5%10.5%9.9%
1950 to 19595.4% (±4.7 points)5.0%10.2%9.5%
1940 to 19491.3% (±1.1 points)5.7%5.2%4.4%
1939 or earlier25.7% (±4.9 points)23.4%16.0%11.7%

In Williamsport, the share of homes built before 1980 is not measurably different from Warren County (57.9%).

It is not measurably different from Indiana (55.0%).

It is higher than the national figure (49.7%).

In Warren County, Williamsport ranks 9 of 16 places with a published estimate, from highest to lowest share of homes built before 1980.

Statewide, it ranks 811 of 1,600.

Rankings use the estimates alone; where margins of error overlap, neighboring ranks may not truly differ.

Why the age of a home matters: lead-based paint

Federal law treats housing built before 1978 as likely to contain lead-based paint.

Before a lease or sale of most pre-1978 housing, the landlord or seller must disclose any known lead-based paint and hazards and give the tenant or buyer the EPA pamphlet (42 U.S.C. § 4852d; 40 CFR part 745, subpart F; 24 CFR part 35, subpart A).

A contractor paid to renovate, repair or paint a pre-1978 home must be a certified firm, use a certified renovator and follow lead-safe work practices under the Renovation, Repair and Painting Rule (40 CFR part 745, subpart E) whenever the job disturbs more than 6 square feet of painted surface in a room or more than 20 square feet outside; window replacement and demolition always count (40 CFR 745.83).

Certification comes from EPA, or from the state where EPA has authorized the state to run the program.

The Census Bureau groups construction by decade, so the share built before 1978 lies between the share built before 1970 (48.5%) and the share built before 1980 (61.3%).

Homes built before 1980 in places near Williamsport

Nearest places with a published estimate, compared with Williamsport
PlaceDistanceHomes built before 1980Compared with this place
Williamsport—61.3% (±9.5 points)—
Washington Township (Warren County)2.1 mi59.9% (±9.2 points)Not measurably different
Attica2.5 mi78.9% (±10.9 points)Higher
Liberty Township (Warren County)4.3 mi56.4% (±29.7 points)Not measurably different
Logan Township (Fountain County)4.3 mi77.2% (±11.1 points)Higher
West Lebanon5.1 mi63.1% (±15.4 points)Not measurably different
Pike Township (Warren County)5.4 mi63.0% (±14.2 points)Not measurably different
Shawnee Township5.5 mi48.8% (±29.5 points)Not measurably different
Warren Township (Warren County)6.9 mi56.5% (±27.5 points)Not measurably different

Nearby places with a measurably higher figure: Attica, IN (78.9%), Logan Township (Fountain County), IN (77.2%).

Distance is measured in a straight line between the Census Bureau’s internal points for each place.

Homes built before 1980 across Warren County, place by place

RankPlaceHomes built before 1980
3Prairie Township (Warren County)84.5% (±58.0 points)
4State Line City78.9% (±60.1 points)
5Kent Township74.2% (±31.6 points)
6Adams Township (Warren County)73.7% (±24.3 points)
7West Lebanon63.1% (±15.4 points)
8Pike Township (Warren County)63.0% (±14.2 points)
9Williamsport61.3% (±9.5 points)
10Washington Township (Warren County)59.9% (±9.2 points)
11 (tie)Mound Township56.5% (±29.5 points)
11 (tie)Warren Township (Warren County)56.5% (±27.5 points)
13Liberty Township (Warren County)56.4% (±29.7 points)
14Steuben Township (Warren County)55.6% (±22.0 points)
15Pine Township (Warren County)42.1% (±25.5 points)

Showing 13 of 16 places in Warren County, ranked from highest to lowest.

Survey years: 2020–2024 (American Community Survey 5-year estimates).

Margins of error are at the 90% confidence level.

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Questions about Williamsport

How old are most homes in Williamsport?

61.3% of homes in Williamsport, IN were built before 1980 (2020–2024 American Community Survey).

Do homes in Williamsport need a lead paint disclosure?

A home built before 1978 does, before it is rented or sold, unless an exemption applies (42 U.S.C. § 4852d); between 48.5% and 61.3% of homes in Williamsport were built before then.

Does a contractor need lead certification to work on older homes in Williamsport?

Yes, when the job disturbs more than 6 square feet of paint in a room or 20 square feet outside, or replaces a window: the firm must be certified and a certified renovator must direct the work under the Renovation, Repair and Painting Rule (40 CFR part 745, subpart E).

Sources

To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for Williamsport town, Indiana (place:84410, in state:18).

Each estimate (E or PE) has a margin of error beside it (M or PM).

The API needs a free key.

Request a Census API key.

DP04_0017PE, DP04_0017PM, DP04_0018PE, DP04_0018PM, DP04_0019PE, DP04_0019PM, DP04_0020PE, DP04_0020PM, DP04_0021PE, DP04_0021PM, DP04_0022PE, DP04_0022PM, DP04_0023PE, DP04_0023PM, DP04_0024PE, DP04_0024PM, DP04_0025PE, DP04_0025PM, DP04_0026PE, DP04_0026PM

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.

Figures last updated on .

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