Postal Codes

04864 ZIP Code

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ZIP code 04864 covers Warren, Maine, with a population of about 4,893 and a median household income of $77,321.

Population
4,893105 per square mile
Median age
42.63.9 points above the US average
Median household income
$77,3211.1× the Maine median
Poverty rate
10%2.4 points below the US average
Typical home value
$350,303up 44.5% in five years
Median rent
$1,058about the Maine median
Degree or higher
19.1%15.9 points below the US average
Homeownership
89.2%24.2 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
120

Where 04864 is

Warren, Maine — 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

Population4,893
Median age42.6
Family households60.2%
Born outside the US2.7%
Speaks a language other than English at home3.9%
White (non-Hispanic)89.8%
Black (non-Hispanic)1.6%
Asian (non-Hispanic)0.7%
Hispanic or Latino2.2%
Veterans6.7%
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$77,321
Income per person$32,318
Poverty rate10%
Households on SNAP or cash assistance8%

Household income distribution

Under $10k0.0%
$10–15k7.6%
$15–20k1.3%
$20–25k4.2%
$25–30k0.0%
$30–35k5.0%
$35–40k2.9%
$40–45k0.0%
$45–50k2.2%
$50–60k17.0%
$60–75k9.3%
$75–100k16.9%
$100–125k12.4%
$125–150k6.4%
$150–200k10.3%
$200k or more4.5%

Income as declared to the IRS

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

Tax returns filed2,140
Mean adjusted gross income$62,171
Returns declaring $200,000 or more3.7%
Returns, under $25k29.9%
Returns, $25k–$50k26.2%
Returns, $50k–$75k17.3%
Returns, $75k–$100k10.7%
Returns, $100k–$200k12.1%
Returns, $200k or more3.7%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$215,500
Median gross rent$1,058
Owner-occupied89.2%
Vacant homes16.9%
Median year built1977

What the homes are

Detached house82.7%
Attached house1.1%
2 to 4 units3.3%
5 to 19 units1.1%
Mobile home11.8%
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$350,303as of 2026-07
Typical home value, 1 yeardown 1.8%
Typical home value, 5 yearsup 44.5%
Typical home value, 10 yearsup 128.1%
Typical home value since 2000
200020132026$356,844$93,129

$93,129 in 2000 to $350,303 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate0.6%
Bachelor's degree or higher19.1%
High school diploma or higher94.5%
Works from home10%
Drives to work alone78.6%
Takes public transport0%
Commutes 45 minutes or more9.9%
Health

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

Obesity31.3% 2.1 pts below the national average of 33.4%
Diagnosed diabetes10.2% 1.8 pts below the national average of 12%
Currently smokes17.9% 4.7 pts above the national average of 13.2%
High blood pressure33% 1.1 pts below the national average of 34.1%
Fair or poor general health18.3% 2 pts below the national average of 20.3%
No health insurance (18–64)9.6% 1.7 pts below the national average of 11.3%
Depression26% 4.1 pts above the national average of 21.9%
No leisure-time physical activity22.5% 2.9 pts below the national average of 25.4%
Arthritis29.2% 4.1 pts above the national average of 25.1%
Binge drinking17.1% 1.1 pts above the national average of 16%
Taking blood pressure medication71.9% 2.8 pts below the national average of 74.7%
Cancer (non-skin)8% same as the national average of 7.7%
Current asthma11.8% 1.4 pts above the national average of 10.4%
Coronary heart disease6.7% 0.5 pts above the national average of 6.2%
Routine check-up in past year78.1% 1.4 pts above the national average of 76.7%
Cholesterol screening84.8% 1.1 pts below the national average of 85.9%
Cognitive disability15.8% 1 pts above the national average of 14.8%
Colorectal screening69.1% 4.8 pts above the national average of 64.3%
COPD8.2% 1.6 pts above the national average of 6.6%
Visited a dentist64.3% 3 pts above the national average of 61.3%
Any disability29.7% 1 pts below the national average of 30.7%
Lacks emotional support26.4% 1.6 pts above the national average of 24.8%
Food insecurity11.5% 5.6 pts below the national average of 17.1%
Received food stamps15.1% 0.8 pts above the national average of 14.3%
Hearing disability7.5% 0.8 pts above the national average of 6.7%
High cholesterol36.2% same as the national average of 36.2%
Housing insecurity11.5% 2.3 pts below the national average of 13.8%
Independent living disability7.9% 0.5 pts below the national average of 8.4%
Lacks transport8.5% 0.7 pts below the national average of 9.2%
Loneliness31.6% 2.8 pts below the national average of 34.4%
Mammography use77.4% 1.5 pts above the national average of 75.9%
Poor mental health (14+ days)17.6% 0.8 pts above the national average of 16.8%
Mobility disability12.8% 1.2 pts below the national average of 14%
Poor physical health (14+ days)13.9% same as the national average of 13.5%
Self-care disability3.6% same as the national average of 4%
Utility shut-off threat8.6% same as the national average of 8.8%
Sleeps under 7 hours32.6% 3.8 pts below the national average of 36.4%
Stroke3.4% same as the national average of 3.4%
All natural teeth lost15.3% 2.3 pts above the national average of 13%
Vision disability4.5% 1.1 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments120
People employed756
Annual payroll$38,462,000
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 23.3% of US census tracts
FEMA ratingRelatively Low
Expected annual loss31.8 out of 100
Community resilience98.8 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.

Winter weather97.9Very High at its worst in this ZIP code
Ice storm95.2Relatively High at its worst in this ZIP code
Landslide94.8Relatively Low at its worst in this ZIP code
Coastal flooding89.9Relatively Moderate at its worst in this ZIP code
Hurricane84.6Relatively Moderate at its worst in this ZIP code
Drought82.7Relatively Low at its worst in this ZIP code
Lightning80.4Relatively High at its worst in this ZIP code
Strong wind77.1Relatively Moderate at its worst in this ZIP code
Wildfire62.2Very Low at its worst in this ZIP code
Hail50.4Relatively Low at its worst in this ZIP code
Cold wave47.4Relatively Moderate at its worst in this ZIP code
Earthquake40.8Very Low at its worst in this ZIP code
Tornado24.6Very Low at its worst in this ZIP code
River flooding14.7Very Low at its worst in this ZIP code
Heat wave3.8Very Low at its worst in this ZIP code
Compared with Maine 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 ZIPMaineUnited States
Median household income$77,321$71,773$78,538
Income per person$32,318$42,035$43,289
Poverty rate10%10.8%12.4%
Median home value$215,500$266,400$303,400
Median gross rent$1,058$1,084$1,348
Homeownership89.2%74%65%
Bachelor's degree or higher19.1%35.3%35%
Unemployment rate0.6%3.9%5.2%
Works from home10%14.1%13.5%
Born outside the US2.7%3.9%13.9%
Median age42.644.838.7
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 stationW ROCKPORT 1 NNW, ME US10.8 km away
Rain in a year56 in
Snow in a year69 in

Average high and low by month

January30.3°F / 12°F4.75 in rain, 17.2 in snow
February32.5°F / 13.6°F4.2 in rain, 19.2 in snow
March39.6°F / 22.2°F5.01 in rain, 11.3 in snow
April51.4°F / 33.6°F5.21 in rain, 3.5 in snow
May62.4°F / 44.1°F4.22 in rain
June70.8°F / 53.5°F4.49 in rain
July76.7°F / 59.6°F3.2 in rain
August76.3°F / 59.2°F3.37 in rain
September69°F / 51.9°F4.49 in rain
October57.2°F / 40.9°F6.07 in rain, 0.2 in snow
November46.7°F / 31.1°F5.27 in rain, 2.3 in snow
December36.4°F / 20.2°F5.92 in rain, 15 in snow
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 supermarketNone of this ZIP code
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%.

School Administrative District 40100% 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 vulnerability22more vulnerable than 22% of US census tracts
Socioeconomic status33more vulnerable than 33% of US census tracts
Household characteristics3more vulnerable than 3% of US census tracts
Racial and ethnic minority status15more vulnerable than 15% of US census tracts
Housing type and transport63more vulnerable than 63% of US census tracts
Walkability7.2 out of 20Below average
Nearby ZIP codes

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

04861 Thomaston, ME6.7 km away
04572 Waldoboro, ME10.4 km away
04841 Rockland, ME10.8 km away
04865 West Rockport, ME12.5 km away
04858 South Thomaston, ME13.4 km away
04854 Owls Head, ME14 km away
04856 Rockport, ME14.3 km away
04859 Spruce Head, ME14.4 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.

Knox County100% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area46.47 sq mi
Water area2.28 sq mi
Population density105 people per sq mi
Latitude, longitude44.1271, -69.2479

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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