Duncans Mills, CA · standard
ZIP Code 95430
Sonoma County, California - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 44
- 72/sq mi Moderate-density area
National ZIP placement
Duncans Mills has 44 residents, placing it among the least populous of the 33,099 US ZIP codes with a reported population, at 72 people per square mile.
Source: USPS ZIP record + U.S. Census Bureau ZIP population. Rank compares ZIP 95430 against every US ZIP with a reported population; income/home-value percentiles are not available for this ZIP.
ZIP code 95430 is a sparsely populated ZIP (a standard USPS delivery area) in Duncans Mills, Sonoma County, California, home to just 44 residents across 0.6 square miles, a density of 72 people per square mile, in the Los Angeles time zone.
With fewer than 100 residents on file, this page keeps the Census figures below and skips the multi-chart expansion used on larger ZIPs. Small-N ACS estimates are already unstable enough without padding the page around them.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 95430, Duncans Mills, CA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
44
Population
0.6
Area (sq mi)
72
People / sq mi
Los Angeles
Time Zone
standard
ZIP Type
Who lives in ZIP 95430?
-
Median Age
-
Male
-
Female
-
Foreign-Born
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
16housing units
16
Total Housing Units
0
Occupied Units
16
Vacant Units
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 18 business establishments in ZIP 95430, employing approximately 99 people with a combined annual payroll of $3,651,000.
18
Businesses
99
Employees
$3.7M
Annual Payroll
2
Industry Sectors
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 95430 vs 95462 →
Related Areas
Frequently Asked Questions
What county is ZIP code 95430 in?
ZIP code 95430 (Duncans Mills) is located in Sonoma County, California. Sonoma County contains multiple ZIP codes, see the full list at /counties/sonoma-ca.
What is the population of ZIP code 95430?
ZIP code 95430 in Duncans Mills, CA has a population of 44 according to the Census Bureau ACS 2023 estimates.
Take this with you
What to do with ZIP 95430's numbers, next.
- See how ZIP 95430 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Duncans Mills, CA ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
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ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.