How old are the homes in Rich Township, IL?

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

56.0% (±3.4 points) of the homes in Rich Township, IL were built before 1980 (2020–2024 American Community Survey).

2.5% were built before 1940.

4.4% were built in 2010 or later.

Figures last updated on November 12, 2026.

Built before 1980: 56.0% (±3.4 points)
Built before 1940: 2.5%
Built 2010 or later: 4.4%

When the homes in Rich Township were built

Housing units by year structure built, 2020–2024
Year built	Rich Township	Cook County	Illinois	United States
2020 or later	0.1% (±0.1 points)	0.7%	0.7%	2.0%
2010 to 2019	4.3% (±1.4 points)	4.4%	5.0%	9.4%
2000 to 2009	15.3% (±1.8 points)	7.9%	11.2%	13.6%
1990 to 1999	13.8% (±2.0 points)	6.2%	10.5%	12.4%
1980 to 1989	10.6% (±1.4 points)	7.6%	9.2%	12.9%
1970 to 1979	18.3% (±2.0 points)	12.1%	14.2%	14.2%
1960 to 1969	12.4% (±1.7 points)	12.5%	11.5%	9.9%
1950 to 1959	18.9% (±1.8 points)	14.3%	11.9%	9.5%
1940 to 1949	3.9% (±0.9 points)	6.6%	5.6%	4.4%
1939 or earlier	2.5% (±0.7 points)	27.8%	20.2%	11.7%

In Rich Township, the share of homes built before 1980 is lower than in Cook County (73.3%).

It is also lower than in Illinois (63.4%).

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

In Cook County, Rich Township ranks 125 of 148 places with a published estimate, from highest to lowest share of homes built before 1980.

Statewide, it ranks 1997 of 2,751.

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 (37.7%) and the share built before 1980 (56.0%).

Homes built before 1980 in places near Rich Township

Nearest places with a published estimate, compared with Rich Township
Place	Distance	Homes built before 1980	Compared with this place
Rich Township	—	56.0% (±3.4 points)	—
Matteson	0.8 mi	32.2% (±5.8 points)	Lower
Olympia Fields	2.2 mi	50.1% (±11.3 points)	Not measurably different
Richton Park	2.5 mi	55.2% (±7.5 points)	Not measurably different
Flossmoor	3.0 mi	67.6% (±11.8 points)	Not measurably different
Park Forest	3.3 mi	91.7% (±8.1 points)	Higher
Country Club Hills	3.4 mi	62.3% (±7.4 points)	Not measurably different
Frankfort Square	3.6 mi	42.6% (±7.1 points)	Lower
Hazel Crest	4.7 mi	76.7% (±12.1 points)	Higher

Nearby places with a measurably lower figure: Matteson, IL (32.2%), Frankfort Square, IL (42.6%).

Nearby places with a measurably higher figure: Park Forest, IL (91.7%), Hazel Crest, IL (76.7%).

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

Homes built before 1980 across Cook County, place by place

Rank	Place	Homes built before 1980
119	Justice	58.9% (±8.1 points)
120	Palatine Township	58.5% (±2.6 points)
121 (tie)	Palatine	58.4% (±3.3 points)
121 (tie)	Palos Heights	58.4% (±6.2 points)
123	Palos Township	57.5% (±3.7 points)
124	Bridgeview	56.9% (±7.5 points)
125	Rich Township	56.0% (±3.4 points)
126	Northfield Township	55.3% (±2.8 points)
127	Richton Park	55.2% (±7.5 points)
128	Barrington Hills	54.4% (±14.1 points)
129	Glenview	54.1% (±3.5 points)
130 (tie)	Palos Park	53.9% (±11.5 points)
130 (tie)	Willow Springs	53.9% (±8.9 points)

Showing 13 of 148 places in Cook 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 Rich Township

How old are most homes in Rich Township?

56.0% of homes in Rich Township, IL were built before 1980 (2020–2024 American Community Survey).

Do homes in Rich Township 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 37.7% and 56.0% of homes in Rich Township were built before then.

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

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 — Rich township, Cook County, Illinois

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 Rich township, Cook County, Illinois (county subdivision:63498, in state:17 county:031).

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.