How old are the homes in North Rock Springs, WY?

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

31.6% (±11.3 points) of the homes in North Rock Springs, WY were built before 1980 (2020–2024 American Community Survey).

1.1% were built before 1940.

18.6% were built in 2010 or later.

Figures last updated on November 12, 2026.

Built before 1980: 31.6% (±11.3 points)
Built before 1940: 1.1%
Built 2010 or later: 18.6%

When the homes in North Rock Springs were built

Housing units by year structure built, 2020–2024
Year built	North Rock Springs	Sweetwater County	Wyoming	United States
2020 or later	2.9% (±3.9 points)	0.5%	1.5%	2.0%
2010 to 2019	15.7% (±8.1 points)	9.3%	10.2%	9.4%
2000 to 2009	22.2% (±10.5 points)	11.9%	14.3%	13.6%
1990 to 1999	9.1% (±5.9 points)	10.1%	10.8%	12.4%
1980 to 1989	18.4% (±10.6 points)	17.6%	14.1%	12.9%
1970 to 1979	29.1% (±9.8 points)	25.9%	19.0%	14.2%
1960 to 1969	1.4% (±2.3 points)	5.5%	7.2%	9.9%
1950 to 1959	0.0% (±3.5 points)	4.9%	8.1%	9.5%
1940 to 1949	0.0% (±3.5 points)	4.7%	4.1%	4.4%
1939 or earlier	1.1% (±1.7 points)	9.5%	10.8%	11.7%

In North Rock Springs, the share of homes built before 1980 is lower than in Sweetwater County (50.5%).

It is also lower than in Wyoming (49.2%).

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

In Sweetwater County, North Rock Springs ranks 6 of 7 places with a published estimate, from highest to lowest share of homes built before 1980.

Statewide, it ranks 99 of 114.

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 (2.5%) and the share built before 1980 (31.6%).

Homes built before 1980 in places near North Rock Springs

Nearest places with a published estimate, compared with North Rock Springs
Place	Distance	Homes built before 1980	Compared with this place
North Rock Springs	—	31.6% (±11.3 points)	—
Rock Springs	6.2 mi	48.8% (±5.0 points)	Higher
Green River	14 mi	61.3% (±7.7 points)	Higher
Superior	18 mi	57.5% (±38.6 points)	Not measurably different
Granger	35 mi	50.7% (±42.8 points)	Not measurably different
Dutch John	52 mi	80.1% (±50.0 points)	Not measurably different
Manila	52 mi	51.1% (±8.6 points)	Higher
Opal	54 mi	27.1% (±20.3 points)	Not measurably different
Lyman	57 mi	35.2% (±13.2 points)	Not measurably different

Nearby places with a measurably higher figure: Rock Springs, WY (48.8%), Green River, WY (61.3%), Manila, UT (51.1%).

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

Homes built before 1980 across Sweetwater County, place by place

Rank	Place	Homes built before 1980
1	Bairoil	80.4% (±29.6 points)
2	Green River	61.3% (±7.7 points)
3	Superior	57.5% (±38.6 points)
4	Granger	50.7% (±42.8 points)
5	Rock Springs	48.8% (±5.0 points)
6	North Rock Springs	31.6% (±11.3 points)
7	Wamsutter	24.2% (±40.1 points)

North Rock Springs is a census-designated place: an unincorporated community the Census Bureau draws for statistics, with no municipal government of its own.

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 North Rock Springs

How old are most homes in North Rock Springs?

31.6% of homes in North Rock Springs, WY were built before 1980 (2020–2024 American Community Survey).

Do homes in North Rock Springs 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 2.5% and 31.6% of homes in North Rock Springs were built before then.

Does a contractor need lead certification to work on older homes in North Rock Springs?

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 — North Rock Springs CDP, Wyoming

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 North Rock Springs CDP, Wyoming (place:56700, in state:56).

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.