ZIP Code 04864
standardSource:
Warren · Knox County · Maine
- Population
- 4,751
- Median income
- $74,616
- Median home value
- $232,700
- Bachelor's or higher
- 21.4%
- Land area
- 120.3 sq mi
40/sq mi
▼ 2% vs US
higher than 54% of US ZIPs
▼ 16% vs US
higher than 53% of US ZIPs
Median age 42.2
New York
ZIP code 04864 in Warren, Maine has a population of 4,751. The median household income is $74,616, which is 2% below the national average. Median home value is $232,700, 16% below the US average. 21.4% of residents hold a bachelor's degree or higher.
ZIP code 04864 is classified by USPS as a standard delivery area and covers roughly 120.3 square miles in Warren, Knox County, Maine. The area is home to 4,751 residents, producing a population density of 40 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 04864 against Maine and the nation.
On the economic side, the median household income for ZIP 04864 sits at $74,616 (2% above the Maine average), while per-capita income is $37,647. The poverty rate stands at 6.0% and the unemployment rate at 0.6%. On housing, the median home value is $232,700 (18% below the state average) with median rent at $1,125 per month, and 81.3% of occupied units are owner-occupied, a direct signal of whether 04864 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 21.4% of adults hold a bachelor's degree or higher, the median age is 42.2, and the average commute is 23 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Knox County, so you can benchmark 04864 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 04864
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 04864.
- Construction
Construction
30 establishments
- Health care and social assistance
Health care and social assistance
18 establishments
- Retail trade
Retail trade
17 establishments
- Other services (except public administration)
Other services (except public administration)
15 establishments
- Manufacturing
Manufacturing
13 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, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 04864, Warren, ME · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
4,751
Population
120.3
Area (sq mi)
40
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 04864?
42.2
Median Age
66.4%
Male
33.6%
Female
2.7%
Foreign-Born
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?
$74,616
Median Household Income
+2% vs state
$37,647
Per Capita Income
6.0%
Poverty Rate
0.6%
Unemployment Rate
22.7 min
Mean Commute Time
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
1,887
Total Housing Units
1,645
Occupied Units
242
Vacant Units
2.29
Avg Household Size
Occupancy Type
$232,700
Median Home Value
-18% vs state
$1,125
Median Rent
1981
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
-1.9%
YoY Change (2024)
306
HPI Index (2000 = 100)
+206%
Total Change Since 2000
Home values in ZIP 04864 have decreased 1.9% over the past year (2024). Since 2000, this ZIP has seen +206% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +10.3% | 175 |
| 2021 | +18.3% | 206 |
| 2022 | +24.0% | 256 |
| 2023 | +21.6% | 311 |
| 2024 | -1.9% | 306 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 125 business establishments in ZIP 04864, employing approximately 750 people with a combined annual payroll of $38,613,000.
125
Businesses
750
Employees
$38.6M
Annual Payroll
10
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 30 | 24.0% |
| Health care and social assistance | 18 | 14.4% |
| Retail trade | 17 | 13.6% |
| Other services (except public administration) | 15 | 12.0% |
| Manufacturing | 13 | 10.4% |
| Administrative and support and waste management and remediation services | 9 | 7.2% |
| Professional, scientific, and technical services | 6 | 4.8% |
| Agriculture, forestry, fishing and hunting | 3 | 2.4% |
| Finance and insurance | 3 | 2.4% |
| Arts, entertainment, and recreation | 3 | 2.4% |
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 04864 vs 04861 →
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 04861 | Thomaston, ME | 2,781 | 4.3 mi |
| 04841 | Rockland, ME | 7,297 | 5.4 mi |
| 04563 | Cushing, ME | 1,534 | 7.9 mi |
| 04572 | Waldoboro, ME | 5,075 | 6.3 mi |
| 04862 | Union, ME | 3,592 | 9.3 mi |
| 04856 | Rockport, ME | 3,330 | 7.0 mi |
| 04847 | Hope, ME | 1,536 | 8.8 mi |
| 04858 | South Thomaston, ME | 1,533 | 7.6 mi |
| 04547 | Friendship, ME | 1,152 | 10.2 mi |
| 04859 | Spruce Head, ME | 724 | 11.1 mi |
More ZIP Codes in Knox County
Related Areas
Frequently Asked Questions
What county is ZIP code 04864 in? ▼
What is the population of ZIP code 04864? ▼
What is the median household income in ZIP 04864? ▼
What is the average home value in ZIP 04864? ▼
What is the demographic makeup of ZIP 04864? ▼
How many businesses are in ZIP code 04864? ▼
What are the main industries in ZIP code 04864? ▼
How have home values changed in ZIP code 04864? ▼
What is the education level in ZIP code 04864? ▼
What is the average commute time in ZIP 04864? ▼
What percentage of residents own vs. rent in ZIP 04864? ▼
What is the poverty rate in ZIP code 04864? ▼
ZIP Code Research Guides
Official Data Resources for Warren, ME
Verify and explore additional data for this area using these official government sources.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023). Business data: Source: Census ZIP Code Business Patterns (ZBP) 2023. Home value trends: Source: FHFA House Price Index (HPI), Five-Digit ZIP Codes.
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.
Read our methodology , how this data is sourced, computed, and verified.