🇺🇸 United States ZIP Code

STANDARD

95409

Santa Rosa

ZIP Code 95409 is a standard zip code serving Santa Rosa, Santa Rosa, California (CA), in Sonoma County, United States. It has an estimated population of 27,187 with a median household income of $66,567. The area falls within the America/Los_Angeles timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: California (CA)
County: Sonoma
City: Santa Rosa
Timezone: America/Los_Angeles

Coordinates

Latitude: 38.459200
Longitude: -122.639300

Geographic Details

Land Area: 38.37 mi²
Water Area: 0.26 mi²
Population Density: 708.0 people per mi² (75th percentile)
Bounding Box: 38.521208°N, 38.402487°S, -122.510488°E, -122.694199°W

With 27,187 residents spread across 38.37 square miles, this area has a population density of 708.0 people per square mile.

Demographics

27,187

Population

85th percentile

$66,567

Median Income

80th percentile

$430,500

Median Home Value

90th percentile

38.37 mi²

Land Area

The median household income in 95409 is $66,567, and the median home value is $430,500. This places the area in the top 25% nationally for household income.

Housing

12,983

Total Units

12,147

Occupied Units

93.6%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Santa Rosa, CA.

95401

Santa Rosa

95402

Santa Rosa

95403

Santa Rosa

95404

Santa Rosa

95405

Santa Rosa

95406

Santa Rosa

95407

Santa Rosa

Similar ZIP Codes in California

ZIP codes with similar median household income in California.

95620

Dixon

$71,261

94515

Calistoga

$60,754

93921

Carmel By The Sea

$66,231

91761

Ontario

$60,971

92337

Fontana

$69,804

90701

Artesia

$59,946

93022

Oak View

$75,756

92107

San Diego

$60,929

Frequently Asked Questions

What information is available for each ZIP code?

Each ZIP code page shows city, state, county, geographic coordinates, timezone, population, median household income, median home value, housing units, land area, population density, commute time, educational attainment, area codes, and ZIP code type (Standard, PO Box, or Unique).

What are the different types of ZIP codes?

There are three types of ZIP codes: Standard (residential and commercial delivery areas), PO Box (assigned to post office box sections), and Unique (assigned to a single high-volume address like a government agency or large company). Standard ZIP codes are the most common.

How often is ZIP code data updated?

ZIP code assignments are updated quarterly by the USPS. Demographic data comes from the US Census Bureau's American Community Survey (ACS), which releases new 5-year estimates annually. ZipFYI updates its data to reflect the latest available information.

What is population density and why does it matter?

Population density measures the number of people per square mile in a ZIP code area. It helps identify urban vs. rural areas, affects real estate values, impacts service availability, and is used in market analysis. Dense urban ZIP codes may have 50,000+ people per square mile.

How are ZIP code boundaries determined?

ZIP code boundaries are determined by the USPS based on mail delivery routes, not political or geographic boundaries. They follow carrier routes and may cross city, county, or even state lines. Boundaries can change when the USPS reorganizes delivery operations.

What does median household income tell me about a ZIP code?

Median household income is the middle value when all household incomes in a ZIP code are sorted. Half of households earn more and half earn less. It is a better indicator of typical earnings than average income, which can be skewed by very high or very low outliers.