How old are the homes in Rapid Valley, SD?

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

38.9% (±10.0 points) of the homes in Rapid Valley, SD were built before 1980 (2020–2024 American Community Survey).

2.6% were built before 1940.

11.2% were built in 2010 or later.

Figures last updated on November 12, 2026.

Built before 1980: 38.9% (±10.0 points)
Built before 1940: 2.6%
Built 2010 or later: 11.2%

When the homes in Rapid Valley were built

Housing units by year structure built, 2020–2024
Year built	Rapid Valley	Pennington County	South Dakota	United States
2020 or later	1.4% (±1.3 points)	3.4%	2.3%	2.0%
2010 to 2019	9.8% (±4.4 points)	12.4%	13.1%	9.4%
2000 to 2009	24.7% (±5.6 points)	15.5%	14.2%	13.6%
1990 to 1999	11.8% (±4.6 points)	10.9%	11.5%	12.4%
1980 to 1989	13.4% (±4.9 points)	10.1%	9.1%	12.9%
1970 to 1979	20.9% (±6.2 points)	17.7%	14.5%	14.2%
1960 to 1969	3.2% (±2.7 points)	7.9%	7.6%	9.9%
1950 to 1959	5.8% (±3.6 points)	12.3%	8.0%	9.5%
1940 to 1949	6.4% (±6.2 points)	3.1%	3.9%	4.4%
1939 or earlier	2.6% (±1.8 points)	6.5%	15.8%	11.7%

In Rapid Valley, the share of homes built before 1980 is not measurably different from Pennington County (47.5%).

It is also lower than in South Dakota (49.8%).

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

In Pennington County, Rapid Valley ranks 21 of 29 places with a published estimate, from highest to lowest share of homes built before 1980.

Statewide, it ranks 956 of 1,169.

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 (18.0%) and the share built before 1980 (38.9%).

Homes built before 1980 in places near Rapid Valley

Nearest places with a published estimate, compared with Rapid Valley
Place	Distance	Homes built before 1980	Compared with this place
Rapid Valley	—	38.9% (±10.0 points)	—
Green Valley	2.0 mi	24.0% (±19.2 points)	Not measurably different
Box Elder	3.6 mi	19.2% (±5.3 points)	Lower
Ashland Heights	4.6 mi	88.5% (±31.6 points)	Higher
Rapid City	4.8 mi	52.6% (±2.7 points)	Higher
Colonial Pine Hills	10 mi	41.8% (±18.0 points)	Not measurably different
Blackhawk	12 mi	31.5% (±13.4 points)	Not measurably different
Summerset	14 mi	12.3% (±7.9 points)	Lower
New Underwood	14 mi	61.0% (±22.9 points)	Not measurably different

Nearby places with a measurably lower figure: Box Elder, SD (19.2%), Summerset, SD (12.3%).

Nearby places with a measurably higher figure: Ashland Heights, SD (88.5%), Rapid City, SD (52.6%).

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

Homes built before 1980 across Pennington County, place by place

Rank	Place	Homes built before 1980
15	Lake Flat Township	60.7% (±108.2 points)
16	Cedar Butte Township	54.1% (±85.2 points)
17	Rapid City	52.6% (±2.7 points)
18	Rainy Creek Township	51.3% (±72.3 points)
19	Scenic Township	47.8% (±77.1 points)
20	Colonial Pine Hills	41.8% (±18.0 points)
21	Rapid Valley	38.9% (±10.0 points)
22	Fairview Township (Pennington County)	35.5% (±105.4 points)
23	Hill City	24.8% (±10.7 points)
24	Green Valley	24.0% (±19.2 points)
25	Box Elder	19.2% (±5.3 points)
26 (tie)	Crooked Creek Township	0.0% (±223.6 points)
26 (tie)	Lake Hill Township	0.0% (±175.3 points)

Showing 13 of 29 places in Pennington County, ranked from highest to lowest.

Rapid Valley 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 Rapid Valley

How old are most homes in Rapid Valley?

38.9% of homes in Rapid Valley, SD were built before 1980 (2020–2024 American Community Survey).

Do homes in Rapid Valley 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 18.0% and 38.9% of homes in Rapid Valley were built before then.

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

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 — Rapid Valley CDP, South Dakota

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 Rapid Valley CDP, South Dakota (place:53007, in state:46).

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.