PlainZIP

Winthrop, ME · standard

ZIP Code 04364

Kennebec County, Maine - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

6,025
76/sq mi
$86,470
Median income
$294,800
Median home value
40.0%
Bachelor's or higher

The verdict

Winthrop pairs an above-median household income with above-median home values, in a rural, homeowner-dominated area.

Top 30%
household income, US ZIPs
Top 34%
home value, US ZIPs
76
people per sq mi
93%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 04364 against every reporting US ZIP.

ZIP code 04364 is a mid-sized community (a standard USPS delivery area) in Winthrop, Kennebec County, Maine, home to 6,025 residents across 79.0 square miles, a density of 76 people per square mile, in the New York time zone.

ZIP 04364 lands in the middle-income range, with a median household income of $86,470 (18% above the Maine average), while per-capita income is $39,714. Local economic indicators show a 12.9% poverty rate alongside 3.1% unemployment. The typical home here is valued at $294,800 (4% above the state average); renters pay a median of $892 monthly, and 92.5% of units are owner-occupied.

A solid share of residents have a four-year degree: 40.0% of adults hold a bachelor's degree or higher, the median age is 43.6, and the average commute is 35 minutes. A geography-based comparison follows: 10 ZIP codes within about 10 miles of 04364, plus 6 more within Kennebec County, give a clearer read than the national average alone.

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 →

Top industries in ZIP 04364

Top 5 sectors by establishment count in Winthrop, ME

Which industries have the most business establishments in ZIP 04364.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

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 04364, Winthrop, ME · 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

6,025

Population

79.0

Area (sq mi)

76

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 04364?

43.6

Median Age

45.5%

Male

54.5%

Female

2.0%

Foreign-Born

White 91.4%
African American 1.7%
Asian 0.5%
American Indian or Alaska Native 0.2%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 5.5%
Hispanic or Latino 0.5%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$86,470

Median Household Income

+18% vs state

$39,714

Per Capita Income

12.9%

Poverty Rate

3.1%

Unemployment Rate

34.6 min

Mean Commute Time

How ZIP 04364 ranks nationally

Winthrop, ME household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$86,470 Top 30% higher than 70% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). This entry sits in this band. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 62.5%
Bachelor's Degree or Higher 40.0%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

3,354

Total Housing Units

2,522

Occupied Units

832

Vacant Units

2.42

Avg Household Size

Occupancy Type

Owner 92.5%
Renter 7.5%

$294,800

Median Home Value

+4% vs state

$892

Median Rent

1977

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What businesses operate in this ZIP?

Census Bureau data shows 163 business establishments in ZIP 04364, employing approximately 1,980 people with a combined annual payroll of $79,230,000.

163

Businesses

1,980

Employees

$79.2M

Annual Payroll

14

Industry Sectors

Industry Establishments % of Total
Construction 24 14.7%
Health care and social assistance 23 14.1%
Retail trade 17 10.4%
Professional, scientific, and technical services 17 10.4%
Other services (except public administration) 17 10.4%
Administrative and support and waste management and remediation services 11 6.8%
Accommodation and food services 11 6.8%
Finance and insurance 9 5.5%
Manufacturing 6 3.7%
Wholesale trade 6 3.7%
Real estate and rental and leasing 6 3.7%
Transportation and warehousing 5 3.1%
Arts, entertainment, and recreation 4 2.5%
Information 3 1.8%

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 04364 vs 04355 →

ZIP 04364 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 04364 ranks the most populous - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 04364 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 04364 ranks #4 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
04355 Readfield, ME 2,600 4.9 mi
04343 East Winthrop, ME 25 3.7 mi
04265 North Monmouth, ME 918 4.6 mi
04351 Manchester, ME 2,571 5.2 mi
04259 Monmouth, ME 3,264 6.2 mi
04284 Wayne, ME 1,138 5.8 mi
04347 Hallowell, ME 2,355 7.5 mi
04350 Litchfield, ME 3,577 10.4 mi
04344 Farmingdale, ME 2,951 7.9 mi
04349 Kents Hill, ME 1,158 10.1 mi

More ZIP Codes in Kennebec County

04901 standard
Waterville, ME
Pop: 26,248
04330 standard
Augusta, ME
Pop: 26,086
04345 standard
Gardiner, ME
Pop: 11,646
04963 standard
Oakland, ME
Pop: 7,238
04358 standard
South China, ME
Pop: 4,276
04989 standard
Vassalboro, ME
Pop: 4,215

Related Areas

Kennebec County Winthrop, ME Maine

Frequently Asked Questions

What county is ZIP code 04364 in? ▼
ZIP code 04364 (Winthrop) is located in Kennebec County, Maine. Kennebec County contains multiple ZIP codes, see the full list at /counties/kennebec-me.
What is the population of ZIP code 04364? ▼
ZIP code 04364 in Winthrop, ME has a population of 6,025 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 04364? ▼
The median household income in ZIP 04364 is $86,470, which is 13% above the national average of $76,288.
What is the average home value in ZIP 04364? ▼
The median home value in ZIP 04364 is $294,800, which is 6% above the national average of $278,155.
What is the demographic makeup of ZIP 04364? ▼
The largest racial group in ZIP 04364 is White at 91.4%. Hispanic or Latino residents make up 0.5% of the population.
How many businesses are in ZIP code 04364? ▼
ZIP code 04364 has 163 business establishments employing approximately 1,980 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 04364? ▼
The top industries by establishment count in ZIP 04364 are: Construction (24), Health care and social assistance (23), Retail trade (17). There are 14 industry sectors represented in total.
What is the education level in ZIP code 04364? ▼
In ZIP code 04364, 62.5% of residents aged 25+ have a high school diploma or higher, and 40.0% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 04364? ▼
The mean commute time for workers in ZIP code 04364 is 34.6 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 04364? ▼
In ZIP code 04364, approximately 92.5% of occupied housing units are owner-occupied and 7.5% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 04364? ▼
The poverty rate in ZIP code 04364 is 12.9% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.