County demographics · California
Sonoma County, California demographics
Sonoma County, California (county FIPS 06097) has a median household income of $104,674 (±$2,030) and a total population of 485,040 in the American Community Survey 5-year estimates for 2020-2024.
Margins of error are at the 90% confidence level. The figures describe 2020-2024 (dollars in 2024 dollars), not the present. 40 ZIP Code Tabulation Areas overlap the county (Census 2020).
Data as of Oct 22, 2026 (Olympus publication) · Markdown version
- Values are ACS 5-year estimates for 2020-2024 (dollars in 2024 dollars), not current figures.
- ZCTA-county overlaps come from the Census 2020 relationship file and use 2020 counties, by land area; Connecticut uses its legacy counties, not the planning regions in ACS 2022+.
ACS 5-year estimates, 2020-2024
Census American Community Survey 5-year estimates for 2020-2024, with 90% margins of error as published by the Census Bureau.
| Metric | Estimate | Margin of error (90%) | ACS table |
|---|---|---|---|
| Total population | 485,040 | none (controlled estimate) | B01003 |
| Median age | 42.9 years | ±0.2 years | B01002 |
| Households | 190,998 | ±984 | B11001 |
| Median household income (inflation-adjusted to the final ACS year) | $104,674 | ±$2,030 | B19013 |
| Median value of owner-occupied housing units | $815,500 | ±$6,412 | B25077 |
| Median gross rent | $2,158 | ±$30 | B25064 |
| Owner-occupied share of occupied housing units | 62.6% | none (derived from several estimates) | B25003 (derived) |
| Renter-occupied share of occupied housing units | 37.4% | none (derived from several estimates) | B25003 (derived) |
| High school graduate or higher (age 25+) | 88.7% | none (derived from several estimates) | B15003 (derived) |
| Bachelor's degree or higher (age 25+) | 38.5% | none (derived from several estimates) | B15003 (derived) |
| Share of people below the poverty level | 8.9% | none (derived from several estimates) | B17001 (derived) |
| Unemployment rate (civilian labor force) | 5.7% | none (derived from several estimates) | B23025 (derived) |
- Dollar values are in 2024 inflation-adjusted dollars.
- Percentages' margins of error are in percentage points (pp).
Geography
| Measure | Value |
|---|---|
| County FIPS | 06097 |
| Land area | 1,575.34 sq mi |
| Water area | 192.01 sq mi |
| Population density | 308 per sq mi of land |
| Geography vintage | 2024 Gazetteer |
ZIP codes (ZCTAs) in this county
ZCTAs that overlap the county in the Census 2020 ZCTA to county relationship file, largest share of the county's land first.
| ZCTA | Share of county land | Share of ZCTA land | County is the ZCTA's primary county |
|---|---|---|---|
| 95448 | 11.7% | 100% | Yes |
| 95441 | 10% | 100% | Yes |
| 95421 | 9.1% | 100% | Yes |
| 95425 | 8.2% | 67.5% | Yes |
| 95476 | 6.7% | 97.9% | Yes |
| 94952 | 6.1% | 48.5% | |
| 95412 | 5.7% | 100% | Yes |
| 95404 | 4.8% | 100% | Yes |
| 95472 | 4.5% | 100% | Yes |
| 94954 | 3.9% | 100% | Yes |
| 94515 | 3.7% | 50.6% | Yes |
| 95465 | 3.1% | 100% | Yes |
| 95450 | 2.4% | 100% | Yes |
| 95409 | 2.2% | 100% | Yes |
| 95446 | 2% | 100% | Yes |
| 95442 | 1.6% | 100% | Yes |
| 95407 | 1.4% | 100% | Yes |
| 95403 | 1.4% | 100% | Yes |
| 95436 | 1.3% | 100% | Yes |
| 95401 | 1.3% | 100% | Yes |
| 95492 | 1.3% | 100% | Yes |
| 94923 | 1.2% | 100% | Yes |
| 95452 | 1.1% | 100% | Yes |
| 95497 | 1% | 100% | Yes |
| 94951 | 0.8% | 100% | Yes |
| 94928 | 0.5% | 100% | Yes |
| 94931 | 0.5% | 100% | Yes |
| 95480 | 0.3% | 100% | Yes |
| 95405 | 0.3% | 100% | Yes |
| 94972 | 0.3% | 100% | Yes |
| 94922 | 0.3% | 100% | Yes |
| 95462 | 0.2% | 100% | Yes |
| 95471 | 0.2% | 100% | Yes |
| 95439 | 0.2% | 100% | Yes |
| 94574 | 0.1% | 1.3% | |
| 95444 | 0% | 100% | Yes |
| 95430 | 0% | 100% | Yes |
| 95431 | 0% | 100% | Yes |
| 95419 | 0% | 100% | Yes |
| 95486 | 0% | 100% | Yes |
Sources
- American Community Survey 5-year estimates (Census Data API) — U.S. Census Bureau. ACS 5-year 2020-2024 (release acs5-2024:county), source date 2025-09-02. https://api.census.gov/data/2024/acs/acs5?get=NAME,B01003_001E,B01003_001M,B01002_001E,B01002_001M,B11001_001E,B11001_001M,B19013_001E,B19013_001M,B25077_001E,B25077_001M,B25064_001E,B25064_001M,B25003_001E,B25003_002E,B25003_003E,B15003_001E,B15003_017E,B15003_018E,B15003_019E,B15003_020E,B15003_021E,B15003_022E,B15003_023E,B15003_024E,B15003_025E,B17001_001E,B17001_002E,B23025_003E,B23025_005E&for=county:097&in=state:06
- Published by Olympus on Oct 22, 2026.
- Source data: U.S. Census Bureau. Works of the U.S. government are not subject to copyright in the United States.
- This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
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curl -s "https://api.olympus.new-odyssey.com/v1/geo-demographics/counties/06097" -H "X-API-Key: $OLYMPUS_API_KEY"get_us_demographics {"county_fips":"06097"}