Permits through August 2026Yearly permits since 1995Sacramento County index 1975–2025
Sacramento County (100 = first year)United States, rebased to the same startNBER recession
House prices are indexed by county, not by city: this is Sacramento County's FHFA index, with the national index rebased to the same start.
Census Bureau notes: building permit figures cover new privately owned housing units authorised by permit-issuing places; permits do not mean the units were started or completed, and places that report less often than monthly are imputed in monthly totals. FHFA notes: The FHFA HPI is a broad measure of the movement of single-family house prices. The FHFA HPI is a weighted, repeat-sales index, meaning that it measures average price changes in repeat sales or refinancings on the same properties.
In the 12 months to August 2026, building permits in Folsom, California, covered 445 housing units (−17.3% year on year); the place lies in Sacramento County.
251 of those units were single-family houses (56%), 6 were in two- to four-unit buildings and 188 in buildings of five or more units. That is 4.8 units per 1,000 residents, above the county's 3.8 and well above the state's 2.8.
Since 1995 the place has authorised 21,541 units, with the busiest year 1999 (1,798 units). Sacramento County's FHFA house price index rose +91.2% over the ten years to 2025.
445units permitted, 12 months to August 2026−17.3% on the previous 12 months
251single-family units56% of the total
188units in 5+ unit buildings42% of the total
4.8units per 1,000 residentsSacramento County 3.8 · California 2.8
Permits by month and structure type
Housing units authorised in Folsom by month, latest 24 monthssingle-family2+ unit buildings
Units, 12 months to August 2026
Folsom
Sacramento County
California
United States
All housing units
445
6,105
111,538
1,418,086
Single-family (1 unit)
251 (56%)
4,322 (71%)
55,792 (50%)
888,241 (63%)
2 units
0
216
4,172
34,814
3–4 units
6
9
1,193
17,298
5 or more units
188 (42%)
1,558 (26%)
50,381 (45%)
477,733 (34%)
Units per 1,000 residents
4.8
3.8
2.8
4.1
Change on previous 12 months
−17.3%
−4.5%
+13.8%
−0.1%
Permits by year since 1995
Housing units authorised in Folsom by year, 1995–2025single-family2+ unit buildings
21,541 units since 1995; the busiest year was 1999. Annual figures include units imputed for months a place did not report.
Home prices in Sacramento County
FHFA's index for Sacramento County rose +91.2% over the ten years to 2025 (+6.7% a year) and +0.6% in the latest year, against +80.3% and +0.8% for California. Full county page: decade table, peak-to-low declines, every ZIP code and every permit-issuing place in the county.
Questions and answers
How many homes are being built in Folsom, CA?
445 housing units were authorised by building permits in the 12 months to August 2026, against 538 in the previous 12 months.
What kind of housing is being permitted in Folsom?
251 single-family units, 0 in two-unit buildings, 6 in three- and four-unit buildings and 188 in buildings of five or more units.
How does Folsom compare with its county and state?
4.8 units per 1,000 residents in Folsom, 3.8 in Sacramento County and 2.8 in California.
How have home prices moved in Sacramento County?
FHFA's index for Sacramento County rose +91.2% over the ten years to 2025 and +0.6% in the latest year; the county page has the full series.
What does a permit count?
A housing unit authorised by a building permit for new privately owned residential construction, as reported to the Census Bureau Building Permits Survey by the permit-issuing office. Permits are not completions; some permitted units are never built, and places that report only annually are imputed in monthly figures.
Provenance
Permits: US Census Bureau, Building Permits Survey, place-level monthly and annual files through August 2026 (permit office 142000); county and state comparisons from the county and state files. Population: Census Bureau vintage 2025 estimates for incorporated places, matched on FIPS place code where the permit office is one. House price index: Federal Housing Finance Agency. Public domain. Corrections · Building Permits Survey.