Penngrove, CA · standard
ZIP Code 94951
Sonoma County, California — Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 4,124
- 109/sq mi
- $106,332
- Median income
- $1,207,000
- Median home value
- 46.5%
- Bachelor's or higher
The verdict
Penngrove pairs an upper-quartile household income with top-decile home values, in a rural, homeowner-dominated area.
- Top 15%
- household income, US ZIPs
- Top 1%
- home value, US ZIPs
- 109
- people per sq mi
- 71%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 94951 against every reporting US ZIP.
ZIP code 94951 is classified by USPS as a standard delivery area and covers roughly 38.0 square miles in Penngrove, Sonoma County, California. The area is home to 4,124 residents, producing a population density of 109 people per square mile, and falls within the Los Angeles time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 94951 against California and the nation.
On the economic side, the median household income for ZIP 94951 sits at $106,332 (5% above the California average), while per-capita income is $70,956. The poverty rate stands at 8.2% and the unemployment rate at 4.0%. On housing, the median home value is $1,207,000 (56% above the state average) with median rent at $1,904 per month, and 71.4% of occupied units are owner-occupied, a direct signal of whether 94951 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 46.5% of adults hold a bachelor's degree or higher, the median age is 44.2, and the average commute is 30 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Sonoma County, so you can benchmark 94951 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 94951
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 94951.
- Construction
Construction
37 establishments
- Health care and social assistance 12
Health care and social assistance
12 establishments
- Professional, scientific, and technical services 11
Professional, scientific, and technical services
11 establishments
- Other services (except public administration) 11
Other services (except public administration)
11 establishments
- Manufacturing 9
Manufacturing
9 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 94951, Penngrove, CA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
4,124
Population
38.0
Area (sq mi)
109
People / sq mi
Los Angeles
Time Zone
standard
ZIP Type
Who lives in ZIP 94951?
44.2
Median Age
44.1%
Male
55.9%
Female
6.1%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$106,332
Median Household Income
+5% vs state
$70,956
Per Capita Income
8.2%
Poverty Rate
4.0%
Unemployment Rate
29.6 min
Mean Commute Time
How ZIP 94951 ranks nationally
Household income vs. every US ZIP code
Median household income — the full national distribution, with this ZIP marked
$106,332 Top 15% higher than 85% of 30,318 US ZIPs
Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau — ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
1,548
Total Housing Units
1,419
Occupied Units
129
Vacant Units
2.29
Avg Household Size
Occupancy Type
$1,207,000
Median Home Value
+56% vs state
$1,904
Median Rent
1974
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
+16.1%
YoY Change (2024)
250
HPI Index (2000 = 100)
+150%
Total Change Since 2000
Home values in ZIP 94951 have increased 16.1% over the past year (2024). Since 2000, this ZIP has seen +150% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | -3.9% | 211 |
| 2021 | +2.6% | 217 |
| 2022 | +21.0% | 262 |
| 2023 | -18.0% | 215 |
| 2024 | +16.1% | 250 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 120 business establishments in ZIP 94951, employing approximately 554 people with a combined annual payroll of $35,455,000.
120
Businesses
554
Employees
$35.5M
Annual Payroll
11
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 37 | 30.8% |
| Health care and social assistance | 12 | 10.0% |
| Professional, scientific, and technical services | 11 | 9.2% |
| Other services (except public administration) | 11 | 9.2% |
| Manufacturing | 9 | 7.5% |
| Retail trade | 8 | 6.7% |
| Administrative and support and waste management and remediation services | 8 | 6.7% |
| Educational services | 5 | 4.2% |
| Accommodation and food services | 5 | 4.2% |
| Transportation and warehousing | 4 | 3.3% |
| Information | 3 | 2.5% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 94951 vs 94928 →
ZIP 94951 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 94928
Rohnert Park (94928)
43,170 residents
- 95404
Santa Rosa (95404)
39,761 residents
- 95407
Santa Rosa (95407)
39,352 residents
- 94954
Petaluma (94954)
37,365 residents
- 94952
Petaluma (94952)
32,858 residents
- 95409
Santa Rosa (95409)
27,187 residents
- 95405
Santa Rosa (95405)
21,399 residents
- 94931 8,470
Cotati (94931)
8,470 residents
- 94951 4,124
Penngrove (94951)
4,124 residents
What this shows Among its immediate neighbors, ZIP 94951 ranks #9 by population — useful context the national average alone can't give.
ZIP 94951 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 95442
Glen Ellen (95442)
$164,750 median income
- 95405
Santa Rosa (95405)
$118,299 median income
- 94952
Petaluma (94952)
$117,343 median income
- 94954
Petaluma (94954)
$113,527 median income
- 95409
Santa Rosa (95409)
$107,867 median income
- 94951
Penngrove (94951)
$106,332 median income
- 95404
Santa Rosa (95404)
$105,437 median income
- 94931
Cotati (94931)
$101,994 median income
- 94928
Rohnert Park (94928)
$99,280 median income
What this shows By household income, ZIP 94951 ranks #6 of 9 neighboring ZIPs — local affluence varies block to block, not just metro to metro.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 94928 | Rohnert Park, CA | 43,170 | 3.1 mi |
| 94931 | Cotati, CA | 8,470 | 3.8 mi |
| 95405 | Santa Rosa, CA | 21,399 | 8.1 mi |
| 95404 | Santa Rosa, CA | 39,761 | 10.0 mi |
| 95431 | Eldridge, CA | 631 | 7.3 mi |
| 94954 | Petaluma, CA | 37,365 | 7.5 mi |
| 95407 | Santa Rosa, CA | 39,352 | 7.4 mi |
| 95409 | Santa Rosa, CA | 27,187 | 10.0 mi |
| 95442 | Glen Ellen, CA | 3,178 | 8.2 mi |
| 94952 | Petaluma, CA | 32,858 | 8.5 mi |
More ZIP Codes in Sonoma County
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Frequently Asked Questions
What county is ZIP code 94951 in? ▼
What is the population of ZIP code 94951? ▼
What is the median household income in ZIP 94951? ▼
What is the average home value in ZIP 94951? ▼
What is the demographic makeup of ZIP 94951? ▼
How many businesses are in ZIP code 94951? ▼
What are the main industries in ZIP code 94951? ▼
How have home values changed in ZIP code 94951? ▼
What is the education level in ZIP code 94951? ▼
What is the average commute time in ZIP 94951? ▼
What percentage of residents own vs. rent in ZIP 94951? ▼
What is the poverty rate in ZIP code 94951? ▼
ZIP Code Research Guides
Official Data Resources for Penngrove, CA
Verify and explore additional data for this area using these official government sources.
Read our methodology to see how this data is sourced, computed, and verified.