How old are the homes in Helena Valley West Central, MT?

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

43.0% (±7.3 points) of the homes in Helena Valley West Central, MT were built before 1980 (2020–2024 American Community Survey).

0.3% were built before 1940.

14.8% were built in 2010 or later.

Figures last updated on November 12, 2026.

Built before 1980: 43.0% (±7.3 points)
Built before 1940: 0.3%
Built 2010 or later: 14.8%

When the homes in Helena Valley West Central were built

Housing units by year structure built, 2020–2024
Year built	Helena Valley West Central	Lewis and Clark County	Montana	United States
2020 or later	1.7% (±1.6 points)	3.2%	2.3%	2.0%
2010 to 2019	13.1% (±4.5 points)	13.1%	11.7%	9.4%
2000 to 2009	15.1% (±4.6 points)	12.9%	14.0%	13.6%
1990 to 1999	14.5% (±4.6 points)	12.2%	12.3%	12.4%
1980 to 1989	12.6% (±5.3 points)	11.1%	10.7%	12.9%
1970 to 1979	28.9% (±5.7 points)	18.4%	16.0%	14.2%
1960 to 1969	7.8% (±3.5 points)	6.4%	7.4%	9.9%
1950 to 1959	6.0% (±2.8 points)	6.1%	8.3%	9.5%
1940 to 1949	0.0% (±1.0 points)	3.4%	4.5%	4.4%
1939 or earlier	0.3% (±0.6 points)	13.1%	12.8%	11.7%

In Helena Valley West Central, the share of homes built before 1980 is not measurably different from Lewis and Clark County (47.4%).

It is not measurably different from Montana (49.0%).

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

In Lewis and Clark County, Helena Valley West Central ranks 4 of 7 places with a published estimate, from highest to lowest share of homes built before 1980.

Statewide, it ranks 135 of 167.

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 (14.1%) and the share built before 1980 (43.0%).

Homes built before 1980 in places near Helena Valley West Central

Nearest places with a published estimate, compared with Helena Valley West Central
Place	Distance	Homes built before 1980	Compared with this place
Helena Valley West Central	—	43.0% (±7.3 points)	—
Helena	4.7 mi	58.4% (±4.0 points)	Higher
Helena Valley Northwest	4.8 mi	19.3% (±9.9 points)	Lower
Helena West Side	5.2 mi	55.3% (±22.3 points)	Not measurably different
Helena Valley Northeast	6.5 mi	25.1% (±10.3 points)	Lower
Helena Valley Southeast	7.9 mi	28.5% (±7.2 points)	Lower
East Helena	8.4 mi	67.9% (±20.3 points)	Higher
Montana City	11 mi	22.7% (±7.2 points)	Lower
Clancy	15 mi	28.0% (±12.1 points)	Lower

Nearby places with a measurably lower figure: Helena Valley Northwest, MT (19.3%), Helena Valley Northeast, MT (25.1%), Helena Valley Southeast, MT (28.5%).

Nearby places with a measurably higher figure: Helena, MT (58.4%), East Helena, MT (67.9%).

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

Homes built before 1980 across Lewis and Clark County, place by place

Rank	Place	Homes built before 1980
1	East Helena	67.9% (±20.3 points)
2	Helena	58.4% (±4.0 points)
3	Helena West Side	55.3% (±22.3 points)
4	Helena Valley West Central	43.0% (±7.3 points)
5	Helena Valley Southeast	28.5% (±7.2 points)
6	Helena Valley Northeast	25.1% (±10.3 points)
7	Helena Valley Northwest	19.3% (±9.9 points)

Helena Valley West Central 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 Helena Valley West Central

How old are most homes in Helena Valley West Central?

43.0% of homes in Helena Valley West Central, MT were built before 1980 (2020–2024 American Community Survey).

Do homes in Helena Valley West Central 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 14.1% and 43.0% of homes in Helena Valley West Central were built before then.

Does a contractor need lead certification to work on older homes in Helena Valley West Central?

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 — Helena Valley West Central CDP, Montana

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 Helena Valley West Central CDP, Montana (place:35637, in state:30).

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.