Postal Codes

94951 ZIP Code

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ZIP code 94951 covers Penngrove, California, with a population of about 3,628 and a median household income of $116,093.

Population
3,628282 per square mile
Median age
45.87.1 points above the US average
Median household income
$116,0931.2× the California median
Poverty rate
7.9%4.5 points below the US average
Typical home value
$1,270,339up 8.3% in five years
Median rent
$2,1781.1× the California median
Degree or higher
44%9 points above the US average
Homeownership
66.5%1.5 points above the US average
Time zone
Pacific UTC-08:00observes daylight saving time
Businesses
123

Where 94951 is

Penngrove, California — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population3,628
Median age45.8
Family households52.8%
Born outside the US5.7%
Speaks a language other than English at home25.9%
White (non-Hispanic)61.4%
Black (non-Hispanic)0%
Asian (non-Hispanic)1%
Hispanic or Latino36.4%
Veterans5.9%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$116,093
Income per person$64,873
Poverty rate7.9%
Households on SNAP or cash assistance2.1%

Household income distribution

Under $10k5.7%
$10–15k1.0%
$15–20k0.0%
$20–25k1.4%
$25–30k4.8%
$30–35k1.0%
$35–40k1.5%
$40–45k1.0%
$45–50k0.7%
$50–60k7.2%
$60–75k4.1%
$75–100k8.5%
$100–125k24.5%
$125–150k7.9%
$150–200k7.5%
$200k or more23.2%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed2,200
Mean adjusted gross income$132,868
Returns declaring $200,000 or more17.7%
Returns, under $25k20.5%
Returns, $25k–$50k17.3%
Returns, $50k–$75k13.2%
Returns, $75k–$100k10.0%
Returns, $100k–$200k21.4%
Returns, $200k or more17.7%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$1,213,100
Median gross rent$2,178
Rent as a share of household income31.1%
Owner-occupied66.5%
Vacant homes5.3%
Median year built1973

What the homes are

Detached house94.5%
Attached house1.2%
2 to 4 units2.3%
5 to 19 units0.8%
Mobile home1.3%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$1,270,339as of 2026-07
Typical home value, 1 yearup 0.2%
Typical home value, 5 yearsup 8.3%
Typical home value, 10 yearsup 47.4%
Typical home value since 2000
200020132026$1,280,548$403,628

$403,628 in 2000 to $1,270,339 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate4.5%
Bachelor's degree or higher44%
High school diploma or higher95.9%
Works from home20.1%
Drives to work alone70.1%
Takes public transport1.4%
Commutes 45 minutes or more14.1%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity26% 7.4 pts below the national average of 33.4%
Diagnosed diabetes10.8% 1.2 pts below the national average of 12%
Currently smokes10.2% 3 pts below the national average of 13.2%
High blood pressure33.6% 0.5 pts below the national average of 34.1%
Fair or poor general health17.2% 3.1 pts below the national average of 20.3%
No health insurance (18–64)5.5% 5.8 pts below the national average of 11.3%
Depression23.9% 2 pts above the national average of 21.9%
No leisure-time physical activity18.9% 6.5 pts below the national average of 25.4%
Arthritis27.2% 2.1 pts above the national average of 25.1%
Binge drinking15.3% 0.7 pts below the national average of 16%
Taking blood pressure medication75.7% 1 pts above the national average of 74.7%
Cancer (non-skin)10.5% 2.8 pts above the national average of 7.7%
Current asthma10.2% same as the national average of 10.4%
Coronary heart disease6.9% 0.7 pts above the national average of 6.2%
Routine check-up in past year75.3% 1.4 pts below the national average of 76.7%
Cholesterol screening89.3% 3.4 pts above the national average of 85.9%
Cognitive disability12.2% 2.6 pts below the national average of 14.8%
Colorectal screening69.6% 5.3 pts above the national average of 64.3%
COPD6.2% same as the national average of 6.6%
Visited a dentist69.2% 7.9 pts above the national average of 61.3%
Any disability28.4% 2.3 pts below the national average of 30.7%
Lacks emotional support21.3% 3.5 pts below the national average of 24.8%
Food insecurity9.6% 7.5 pts below the national average of 17.1%
Received food stamps9.1% 5.2 pts below the national average of 14.3%
Hearing disability7% same as the national average of 6.7%
High cholesterol36.8% 0.6 pts above the national average of 36.2%
Housing insecurity8.7% 5.1 pts below the national average of 13.8%
Independent living disability7.2% 1.2 pts below the national average of 8.4%
Lacks transport6.1% 3.1 pts below the national average of 9.2%
Loneliness29.6% 4.8 pts below the national average of 34.4%
Mammography use80.4% 4.5 pts above the national average of 75.9%
Poor mental health (14+ days)15.4% 1.4 pts below the national average of 16.8%
Mobility disability13.9% same as the national average of 14%
Poor physical health (14+ days)13.1% same as the national average of 13.5%
Self-care disability3.5% 0.5 pts below the national average of 4%
Utility shut-off threat5% 3.8 pts below the national average of 8.8%
Sleeps under 7 hours32.7% 3.7 pts below the national average of 36.4%
Stroke3.5% same as the national average of 3.4%
All natural teeth lost7.3% 5.7 pts below the national average of 13%
Vision disability4.1% 1.5 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments123
People employed588
Annual payroll$35,076,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 94.6% of US census tracts
FEMA ratingRelatively High to Very High across the 5 census tracts this ZIP code covers
Expected annual loss96.7 out of 100
Community resilience54.7 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

River flooding97.4Very High at its worst in this ZIP code
Wildfire97.2Relatively High at its worst in this ZIP code
Earthquake94.9Very High at its worst in this ZIP code
Landslide91.1Relatively Moderate at its worst in this ZIP code
Tsunami66.8Relatively Low at its worst in this ZIP code
Drought66.6Relatively High at its worst in this ZIP code
Volcanic activity62Very Low at its worst in this ZIP code
Heat wave37.6Relatively Low at its worst in this ZIP code
Lightning18.4Relatively Low at its worst in this ZIP code
Winter weather15.4Very Low at its worst in this ZIP code
Hail15.2Very Low at its worst in this ZIP code
Coastal flooding12.4Relatively High at its worst in this ZIP code
Strong wind10.5Very Low at its worst in this ZIP code
Tornado4.5Very Low at its worst in this ZIP code
Compared with California and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPCaliforniaUnited States
Median household income$116,093$96,334$78,538
Income per person$64,873$47,977$43,289
Poverty rate7.9%12%12.4%
Median home value$1,213,100$695,400$303,400
Median gross rent$2,178$1,956$1,348
Homeownership66.5%55.8%65%
Bachelor's degree or higher44%36.5%35%
Unemployment rate4.5%6.4%5.2%
Works from home20.1%15.5%13.5%
Born outside the US5.7%26.7%13.9%
Median age45.837.638.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationPETALUMA AP, CA US7.3 km away
Rain in a year26 in

Average high and low by month

January57.6°F / 39°F4.77 in rain
February61.3°F / 40.4°F5.23 in rain
March64.5°F / 41.9°F3.32 in rain
April67.8°F / 43.8°F1.68 in rain
May71.9°F / 47.4°F0.93 in rain
June78.1°F / 50.4°F0.28 in rain
July80.8°F / 52.4°F0.01 in rain
August81.2°F / 52.8°F0.05 in rain
September81.6°F / 51.4°F0.09 in rain
October76.4°F / 47.6°F1.27 in rain
November65.5°F / 42.3°F2.74 in rain
December57.9°F / 38.4°F5.19 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarket46% of this ZIP code's area
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 3 school districts, so the address decides which one, not the ZIP code.

Petaluma City Elementary School District49.1% of this ZIP code's land area
Petaluma Joint Union High School District49.1% of this ZIP code's land area
Cotati-Rohnert Park Unified School District1.7% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability37more vulnerable than 37% of US census tracts
Socioeconomic status26more vulnerable than 26% of US census tracts
Household characteristics52more vulnerable than 52% of US census tracts
Racial and ethnic minority status49more vulnerable than 49% of US census tracts
Housing type and transport47more vulnerable than 47% of US census tracts
Walkability9.9 out of 20Below average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

94931 Cotati, CA5.1 km away
94928 Rohnert Park, CA5.3 km away
94926 Rohnert Park, CA5.3 km away
94927 Rohnert Park, CA5.3 km away
94999 Petaluma, CA5.4 km away
94954 Petaluma, CA7.7 km away
94952 Petaluma, CA8.7 km away
94953 Petaluma, CA9.3 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Sonoma County100% of this ZIP code's land area
Time zonePacific (UTC-08:00 standard)
Daylight saving timeObserved
Land area12.85 sq mi
Population density282 people per sq mi
Latitude, longitude38.3153, -122.6483

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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