How old are the homes in Ridgeway, WI?

Name: Age of homes in Ridgeway, WI, 2020–2024
Creator: US Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

50.9% (±11.1 points) of the homes in Ridgeway, WI were built before 1980 (2020–2024 American Community Survey).

22.8% were built before 1940.

5.4% were built in 2010 or later.

Figures last updated on November 12, 2026.

Built before 1980: 50.9% (±11.1 points)
Built before 1940: 22.8%
Built 2010 or later: 5.4%

When the homes in Ridgeway were built

Housing units by year structure built, 2020–2024
Year built	Ridgeway	Iowa County	Wisconsin	United States
2020 or later	4.6% (±4.7 points)	1.2%	1.4%	2.0%
2010 to 2019	0.8% (±1.0 points)	6.3%	7.1%	9.4%
2000 to 2009	9.1% (±7.4 points)	13.2%	12.5%	13.6%
1990 to 1999	12.9% (±6.9 points)	13.1%	12.5%	12.4%
1980 to 1989	21.7% (±9.4 points)	10.5%	9.5%	12.9%
1970 to 1979	11.4% (±4.5 points)	11.0%	14.2%	14.2%
1960 to 1969	6.1% (±3.3 points)	7.2%	9.4%	9.9%
1950 to 1959	4.9% (±3.0 points)	6.2%	10.3%	9.5%
1940 to 1949	5.7% (±4.0 points)	5.0%	5.3%	4.4%
1939 or earlier	22.8% (±8.2 points)	26.3%	17.8%	11.7%

In Ridgeway, the share of homes built before 1980 is not measurably different from Iowa County (55.7%).

It is not measurably different from Wisconsin (57.0%).

It is not measurably different from the national figure (49.7%).

In Iowa County, Ridgeway ranks 16 of 25 places with a published estimate, from highest to lowest share of homes built before 1980.

Statewide, it ranks 1079 of 1,848.

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 (39.5%) and the share built before 1980 (50.9%).

Homes built before 1980 in places near Ridgeway

Nearest places with a published estimate, compared with Ridgeway
Place	Distance	Homes built before 1980	Compared with this place
Ridgeway	—	50.9% (±11.1 points)	—
Town of Ridgeway	3.1 mi	49.5% (±12.7 points)	Not measurably different
Town of Brigham	4.1 mi	46.3% (±11.2 points)	Not measurably different
Barneveld	4.9 mi	28.9% (±6.5 points)	Lower
Town of Dodgeville	6.6 mi	52.0% (±10.4 points)	Not measurably different
Dodgeville	7.3 mi	56.2% (±10.4 points)	Not measurably different
Blue Mounds	8.5 mi	30.4% (±7.9 points)	Lower
Town of Wyoming (Iowa County)	9.0 mi	47.6% (±12.2 points)	Not measurably different
Hollandale	9.0 mi	83.3% (±19.3 points)	Higher

Nearby places with a measurably lower figure: Barneveld, WI (28.9%), Blue Mounds, WI (30.4%).

Nearby places with a measurably higher figure: Hollandale, WI (83.3%).

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

Homes built before 1980 across Iowa County, place by place

Rank	Place	Homes built before 1980
10	Dodgeville	56.2% (±10.4 points)
11	Avoca	53.9% (±12.9 points)
12	Town of Highland (Iowa County)	53.2% (±11.8 points)
13	Town of Mifflin	52.5% (±14.8 points)
14	Town of Mineral Point	52.4% (±11.0 points)
15	Town of Dodgeville	52.0% (±10.4 points)
16	Ridgeway	50.9% (±11.1 points)
17	Town of Ridgeway	49.5% (±12.7 points)
18	Town of Moscow	48.3% (±14.5 points)
19	Town of Wyoming (Iowa County)	47.6% (±12.2 points)
20	Town of Arena	46.6% (±8.5 points)
21	Town of Brigham	46.3% (±11.2 points)
22	Town of Eden (Iowa County)	43.9% (±12.5 points)

Showing 13 of 25 places in Iowa 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 Ridgeway

How old are most homes in Ridgeway?

50.9% of homes in Ridgeway, WI were built before 1980 (2020–2024 American Community Survey).

Do homes in Ridgeway 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 39.5% and 50.9% of homes in Ridgeway were built before then.

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

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

Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Ridgeway village, Wisconsin

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 Ridgeway village, Wisconsin (place:67875, in state:55).

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.