04864 ZIP Code — Warren, ME

Knox County, Maine

ZIP code 04864 is located in Warren, Maine, within Knox County. It covers approximately 46.47 square miles and serves a population of 4,873 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 207.

About ZIP code 04864

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $191,000. Owner-occupancy is high at 93%, well above the national average.

Median household income is $79,540. The poverty rate of 6% is below the national average.

The dominant occupation class is management, business, and professional, with retail trade as the leading industry. The average commute of 22 minutes is near the national average.

College attainment at 18% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 04864 reflects a community defined by a trades-oriented workforce and high homeownership.

4,873

population

46.47

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

04864 ZIP code map

Cities in ZIP code 04864

Below are the cities the US Postal Service accepts for ZIP code 04864. Using any city not on this list may result in mail delivery delays.

City	Status
Warren	Preferred

Nearby ZIP codes

04861 Thomaston (3.9 mi) 04841 Rockland (5.3 mi) 04572 Waldoboro (6.2 mi) 04856 Rockport (6.6 mi) 04858 South Thomaston (7.8 mi) 04563 Cushing (8.1 mi) 04859 Spruce Head (8.9 mi) 04859 Spruce Head (8.9 mi) 04547 Friendship (9 mi) 04847 Hope (9.3 mi) 04854 Owls Head (9.4 mi) 04862 Union (9.8 mi)

Demographics updated 05/2026

Population
Total population	4,873
Population density	105 / sq mi
State FIPS	23
County FIPS	013

Geography
Land area	46.47 sq mi
Water area	2.28 sq mi
Latitude	44.1264
Longitude	-69.2410
Timezone	Eastern (ET)
Area code	207

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	33.7%	42.0%	42.3%
$50k – $100k	50.8%	34.5%	32.3%
$100k – $200k	15.5%	19.0%	20.6%
Over $200k	0.0%	4.6%	4.9%

Demographics & statistics

4,873

Population

105

People per sq mi

46.2

Median age

$79,540

Median household income

$33,977

Per capita income

$191,000

Median home value

$1,064

Median monthly rent

93.0%

Home ownership

6.1%

Poverty rate

1.1%

Unemployment

1,804

Housing units

17.6%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

147

10–14

182

15–19

104

20–24

424

25–34

240

573

35–44

325

653

45–54

370

262

55–59

148

362

60–64

206

203

65–74

115

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	594	12.2%
18 and over	4,279	87.8%
65 and over	492	10.1%
Median age	46.2 years

Race & ethnicity

White 90%

Two or more races 5.4%

Black or African American 1.4%

Hispanic or Latino 1.3%

Other race 1%

Asian 0.5%

American Indian / Alaska Native 0.4%

Group	Count	%
White	4,443	90%
Two or more races	268	5.4%
Black or African American	70	1.4%
Hispanic or Latino	65	1.3%
Other race	47	1%
Asian	25	0.5%
American Indian / Alaska Native	20	0.4%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	33.7%	42.0%	42.3%
$50k – $100k	50.8%	34.5%	32.3%
$100k – $200k	15.5%	19.0%	20.6%
Over $200k	0.0%	4.6%	4.9%

$10k–$15k 5.1%

$15k–$25k 6.1%

$25k–$35k 4.3%

$35k–$50k 4.5%

$50k–$75k 25.8%

$75k–$100k 17.0%

$100k–$150k 17.1%

$150k–$200k 17.8%

$200k+ 2.3%

Range	% of households
$10k–$15k	5.1%
$15k–$25k	6.1%
$25k–$35k	4.3%
$35k–$50k	4.5%
$50k–$75k	25.8%
$75k–$100k	17.0%
$100k–$150k	17.1%
$150k–$200k	17.8%
$200k+	2.3%
Median income	$79,540

Housing

Home values

Under $50k 3.2%

$50k–$100k 3.2%

$100k–$150k 16.7%

$150k–$200k 34.0%

$200k–$300k 25.2%

$300k–$500k 13.1%

$500k–$1M 4.7%

Housing overview

Metric	Value
Median home value	$191,000
Median rent / month	$1,064
Owner occupied	93.0%
Renter occupied	7.0%
Vacant	13.5%
Single-family detached	82.2%
Large apartment buildings	0.0%
Mobile homes	13.1%
Median rooms	6.3
Avg household size (owned)	2.26

Year built

Era	%
2020 or later	0.5%
2010–2019	2.5%
2000–2009	13.5%
1990–1999	13.5%
1980–1989	12.5%
1970–1979	23.3%
1960–1969	4.3%
1950–1959	4.7%
1940–1949	2.5%
1939 or earlier	22.7%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	8.3%
2 bedrooms	24.5%
3 bedrooms	55.1%
4 bedrooms	10.5%
5+ bedrooms	1.6%

Vehicles per household

Vehicles	% of households
No vehicle	1.2%
1 vehicle	27.6%
2 vehicles	39.3%
3 or more	31.9%

Heating fuel

Fuel type	%
Utility gas	0.1%
Electricity	2.6%
Propane / LP gas	12.9%
Fuel oil	69.0%
Wood	15.4%

Households & families

Household type	Count	%
Married-couple family	799	48.1%
Cohabiting couple	350	21.1%
Male householder, no spouse	171	10.3%
Female householder, no spouse	342	20.6%
Households with children under 18	340	20.5%
Households with seniors (65+)	378	22.7%
Average household size	2.26

Marital status

Status	Male	Female
Never married	46.1%	22.1%
Married	35.7%	50.0%
Separated	0.6%	0.8%
Widowed	2.5%	10.6%
Divorced	15.1%	16.4%

Education

Less than 9th grade 1.1%

Some HS, no diploma 5.3%

HS graduate 48.6%

Some college, no degree 19.2%

Associate's degree 8.2%

Bachelor's degree 11.1%

Graduate / professional 6.5%

Metric	%
HS diploma or higher	93.7%
Bachelor's or higher	17.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	28	3.2%
Elementary school	269	31.1%
High school	373	43.1%
College / grad school	195	22.5%

Employment

Industry of employment

Retail trade 18.8%

Education & healthcare 15.8%

Manufacturing 11.8%

Other services 11.5%

Professional & management 7.9%

Transportation & utilities 6.6%

Agriculture & mining 5.8%

Wholesale trade 5.8%

Arts, food & hospitality 5.0%

Finance & real estate 4.8%

Public administration 4.2%

Construction 2.0%

Occupation

Category	%
Management, business & arts	35.3%
Service	13.3%
Sales & office	25.8%
Natural resources & construction	14.0%
Production & transportation	11.6%

Employment type

Type	%
Private sector	83.8%
Government	9.8%
Self-employed	6.3%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	82.2%
Carpool	5.4%
Public transit	0.2%
Walk	1.3%
Work from home	10.9%
Other means	0.0%
Avg commute (minutes)	22.3

Poverty

All people 6.1%

Under 18 years 9.8%

18 and over 5.5%

Married-couple families 1.4%

Female-led households 13.5%

Income support

Source	% of households
Social Security	26.2%
Retirement income	17.1%
Supplemental Security	0.0%
Cash public assistance	0.7%
Food stamps / SNAP	5.8%

Health indicators

Condition	%
Obesity	32.5%
High blood pressure	30.0%
High cholesterol	32.4%
Diabetes	8.5%
Heart disease	5.9%
Stroke	2.7%
Asthma	10.1%
Arthritis	23.4%
Kidney disease	2.5%
Pulmonary disease	7.6%
Cancer	5.7%

Behavior / access	%
Smoking	20.0%
Binge drinking	18.7%
No physical activity	20.1%
Less than 7 hrs sleep	33.6%
Depression	22.5%
Fair or poor health	12.5%
Poor mental health	14.7%
Poor physical health	9.5%
No health insurance	14.9%
Visited doctor (checkup)	73.9%
Visited dentist	64.9%
Cholesterol screening	86.6%
Teeth loss	17.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	244	5.7%

Disability	%
Any disability	7.9%
Under 18	5.1%
18–64 years	6.2%
65 and over	21.3%

Health insurance coverage

Type	%
Private insurance	67.6%
Public insurance	25.9%
No insurance	13.0%
Uninsured under 19	3.8%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	4,807	98.6%
Spanish	87	1.8%
Other Indo-European	9	0.2%
Asian & Pacific Islander	78	1.6%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	4,735	97.2%
Born in same state	4,620	94.8%
Born in different state	3,199	65.6%
Foreign born	115	2.4%
Naturalized citizen	138	2.8%
Not a US citizen	97	70.3%

Ancestry

Ancestry	Count	%
French	808	16.6%
Italian	762	15.6%
Arab	283	5.8%
German	189	3.9%

Ancestry	Count	%
English	58	1.2%
Dutch	19	0.4%
Polish	13	0.3%
Norwegian	12	0.2%

Technology access

Metric	% of households
Computer access	34.1%
Internet access	94.6%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 04864

What city is ZIP code 04864 in?

ZIP code 04864 is primarily assigned to Warren, Maine.

What county is ZIP code 04864 in?

ZIP code 04864 falls within Knox County, Maine.

Is ZIP code 04864 mostly owner-occupied?

93% of occupied units in ZIP code 04864 are owner-occupied, well above the national average.

What is the typical home value in ZIP code 04864?

The median home value in ZIP code 04864 is $191,000.

What is the population of ZIP code 04864?

ZIP code 04864 has an estimated population of 4,873 residents, with a density of 105 people per square mile.

What is the median household income in ZIP code 04864?

The median household income in ZIP code 04864 is $79,540, above the national median of ~$75,000.

What timezone is ZIP code 04864 in?

ZIP code 04864 observes the EST timezone.