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California ZIP Codes
Napa County
Napa, CA
94558
94558 ZIP Code — Napa, CA
Napa County, California
ZIP code 94558 is located in
Napa ,
California ,
within Napa County .
It covers approximately 399.85 square miles and serves a population of
65,084 residents.
This is a standard ZIP code in the Pacific (PT) timezone,
served by area code 707 .
About ZIP code 94558
The housing stock consists of a mix of housing types. Most homes were built in the 1970s, giving the area an established character. Median home value is $816,200. Owner-occupancy sits near the national average at 68%.
The gap between median ($110,397) and mean household income suggests income inequality — a small number of higher earners pull the average up. 36% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 25 minutes is near the national average.
Educational attainment is near the national average, with 38% of residents holding a bachelor's degree or higher.
94558 ZIP code map
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Cities in ZIP code 94558
Below are the cities the US Postal Service accepts for ZIP code 94558. Using any city not on this list may result in mail delivery delays.
City
Status
Napa
Acceptable
Napa
Preferred
Nearby ZIP codes
Demographics
updated 06/2026
Population
Total population
65,084
Population density
163 / sq mi
State FIPS
06
County FIPS
055
Geography
Land area
399.85 sq mi
Water area
30.73 sq mi
Latitude
38.5297
Longitude
-122.2795
Timezone
Pacific (PT)
Area code
707
Economics
updated 06/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
26.0%
26.8%
32.6%
$50k – $100k
24.8%
26.3%
27.7%
$100k – $200k
31.7%
30.4%
26.4%
Over $200k
17.4%
16.5%
13.3%
Demographics & statistics
$110,397
Median household income
$816,200
Median home value
$2,128
Median monthly rent
37.7%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 12,574 19.3%
18 and over 52,510 80.7%
65 and over 13,919 21.4%
Median age 44.3 years
Race & ethnicity
American Indian / Alaska Native
1.1%
Black or African American
0.9%
Native Hawaiian / Pacific Islander
0.1%
Group Count %
White 45,760 57.9%
Hispanic or Latino 13,941 17.6%
Two or more races 8,294 10.5%
Other race 7,899 10%
Asian 1,519 1.9%
American Indian / Alaska Native 874 1.1%
Black or African American 693 0.9%
Native Hawaiian / Pacific Islander 45 0.1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
26.0%
26.8%
32.6%
$50k – $100k
24.8%
26.3%
27.7%
$100k – $200k
31.7%
30.4%
26.4%
Over $200k
17.4%
16.5%
13.3%
Range % of households
Under $10k 4.1%
$10k–$15k 2.1%
$15k–$25k 3.9%
$25k–$35k 5.2%
$35k–$50k 7.0%
$50k–$75k 12.1%
$75k–$100k 11.2%
$100k–$150k 20.3%
$150k–$200k 13.2%
$200k+ 20.9%
Median income $110,397
Housing
Housing overview
Metric Value
Median home value $816,200
Median rent / month $2,128
Owner occupied 68.0%
Renter occupied 32.0%
Vacant 11.1%
Single-family detached 68.2%
Large apartment buildings 8.3%
Mobile homes 5.9%
Median rooms 5.5
Avg household size (owned) 2.54
Year built
Era %
2020 or later 0.6%
2010–2019 2.5%
2000–2009 8.4%
1990–1999 13.0%
1980–1989 15.2%
1970–1979 23.1%
1960–1969 14.8%
1950–1959 13.8%
1940–1949 5.3%
1939 or earlier 3.5%
Bedrooms
Size % of units
No bedroom (studio) 2.1%
1 bedroom 9.8%
2 bedrooms 26.3%
3 bedrooms 38.0%
4 bedrooms 20.1%
5+ bedrooms 3.7%
Vehicles per household
Vehicles % of households
No vehicle 4.8%
1 vehicle 26.2%
2 vehicles 39.1%
3 or more 29.8%
Heating fuel
Fuel type %
Utility gas 64.9%
Electricity 25.4%
Propane / LP gas 5.1%
Fuel oil 0.2%
Wood 2.2%
Solar 1.0%
No fuel used 0.7%
Households & families
Household type Count %
Married-couple family 13,307 54.9%
Cohabiting couple 1,341 5.5%
Male householder, no spouse 3,460 14.3%
Female householder, no spouse 6,145 25.3%
Households with children under 18 6,830 28.2%
Households with seniors (65+) 9,755 40.2%
Average household size 2.63
Marital status
Status Male Female
Never married 34.0% 25.8%
Married 54.8% 50.3%
Separated 1.6% 1.3%
Widowed 2.6% 10.3%
Divorced 7.0% 12.3%
Education
Some college, no degree
20.2%
Graduate / professional
13.4%
Metric %
HS diploma or higher 84.7%
Bachelor's or higher 37.7%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 691 4.8%
Kindergarten 532 3.7%
Elementary school 5,724 40.1%
High school 3,387 23.7%
College / grad school 3,939 27.6%
Employment
Industry of employment
Education & healthcare
21.0%
Arts, food & hospitality
12.5%
Professional & management
12.1%
Agriculture & mining
6.0%
Finance & real estate
4.3%
Public administration
4.2%
Transportation & utilities
3.9%
Occupation
Category %
Management, business & arts 40.4%
Service 19.7%
Sales & office 18.1%
Natural resources & construction 10.4%
Production & transportation 11.3%
Employment type
Type %
Private sector 78.3%
Government 13.7%
Self-employed 7.9%
Unpaid family workers 0.1%
Commute
Method %
Drive alone 73.5%
Carpool 11.1%
Public transit 0.9%
Walk 2.3%
Work from home 9.7%
Other means 2.5%
Avg commute (minutes) 24.7
Poverty
Married-couple families
3.1%
Female-led households
12.4%
Income support
Source % of households
Social Security 35.8%
Retirement income 29.9%
Supplemental Security 3.3%
Cash public assistance 2.9%
Food stamps / SNAP 3.7%
Health indicators
Condition %
Obesity 27.4%
High blood pressure 28.9%
High cholesterol 31.6%
Diabetes 9.6%
Heart disease 6.2%
Stroke 2.8%
Asthma 9.7%
Arthritis 23.0%
Kidney disease 2.8%
Pulmonary disease 6.3%
Cancer 7.0%
Behavior / access %
Smoking 11.9%
Binge drinking 18.6%
No physical activity 19.3%
Less than 7 hrs sleep 30.5%
Depression 17.9%
Fair or poor health 14.0%
Poor mental health 13.8%
Poor physical health 10.1%
No health insurance 12.6%
Visited doctor (checkup) 67.5%
Visited dentist 65.4%
Cholesterol screening 91.6%
Teeth loss 10.0%
Veterans & disability
Veterans Count %
Civilian veterans 3,275 6.2%
Disability %
Any disability 12.5%
Under 18 6.2%
18–64 years 7.5%
65 and over 32.6%
Health insurance coverage
Type %
Private insurance 76.0%
Public insurance 35.2%
No insurance 4.5%
Uninsured under 19 2.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 62,379 95.8%
Spanish 9,359 15.0%
Other Indo-European 8,605 13.8%
Asian & Pacific Islander 349 0.6%
Other languages 330 0.5%
Place of birth & citizenship
Origin Count %
Native born (US) 52,312 80.4%
Born in same state 51,445 79.0%
Born in different state 38,966 59.9%
Foreign born 867 1.3%
Naturalized citizen 12,772 19.6%
Not a US citizen 6,428 50.3%
Ancestry
Ancestry Count %
French 7,110 10.9%
Italian 6,549 10.1%
Arab 1,715 2.6%
Polish 1,073 1.6%
Dutch 705 1.1%
Ancestry Count %
English 592 0.9%
German 385 0.6%
Irish 209 0.3%
Norwegian 165 0.3%
Technology access
Metric % of households
Computer access 37.3%
Internet access 96.0%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 94558
What part of Napa is ZIP code 94558?
ZIP code 94558 covers a portion of Napa, California, within Napa County.
What county is ZIP code 94558 in?
ZIP code 94558 falls within Napa County, California.
Does ZIP code 94558 have a large retiree population?
36% of households in ZIP code 94558 receive Social Security income, suggesting a significant retiree or disability population.
What is the typical home value in ZIP code 94558?
The median home value in ZIP code 94558 is $816,200.
What is the median household income in ZIP code 94558?
The median household income in ZIP code 94558 is $110,397, above the national median of ~$75,000.
What is the population of ZIP code 94558?
ZIP code 94558 has an estimated population of 65,084 residents, with a density of 163 people per square mile.
What timezone is ZIP code 94558 in?
ZIP code 94558 observes the PST timezone.
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