State profile · ME
Maine ZIP Codes
Demographics, income, and housing across every ZIP code in Maine, benchmarked against all 50 states, DC and Puerto Rico.
- 432
- ZIP codes
- 1,328,255
- Population
- $73,507
- Avg ZIP income
- 16
- Counties
The verdict
Texas leads ZIP coverage at 1,935 ZCTAs (#1 of 52). That is not the income board: New Jersey's unweighted average ZIP household income is $121,992 (#1 of 52) on 595 ZCTAs.
- Texas
- ZIP-count #1 (1,935)
- New Jersey
- income #1 ($121,992)
- #31
- of 52 by ZIP count
- #31
- of 52 by avg income
ZIP-count and income are separate boards among 52 reporting states and territories. Income is the unweighted mean of each ZIP's ACS 2019–2023 median household income, so a rural code counts the same as a dense metro.
Mid-to-lower income with a contained ZIP set (432 codes · 16 counties). Average household income $73,507 and home value $283,606 should be read next to the largest city page, not as a national peer of mosaic states. Use the county RankBars to pick two markets, then compare ZIPs inside those counties.
Population is dispersed across many cities (largest share ~5% in Portland). No single metro owns the narrative: scan the largest-cities chart for several peers, then pick counties from different regions before drilling to ZIP detail. Unweighted ZIP averages are especially noisy on this dispersed map.
Compact ZIP geography: the state page is closer to a directory than a mega-atlas. Prefer the largest city page and its primary ZIP over scanning every county, and keep the FAQ answers as the quick census totals.
Largest cities in Maine
Top 10 cities by population in Maine
Total resident population aggregated from every ZIP code the Census assigns to each city.
- Portland
Portland, ME
65,261 residents
- Bangor
Bangor, ME
44,899 residents
- Lewiston
Lewiston, ME
36,592 residents
- Waterville
Waterville, ME
26,248 residents
- Augusta 26,086
Augusta, ME
26,086 residents
- South Portland 25,175
South Portland, ME
25,175 residents
- Biddeford 23,146
Biddeford, ME
23,146 residents
- Auburn 23,045
Auburn, ME
23,045 residents
- Brunswick 20,278
Brunswick, ME
20,278 residents
- Scarborough 18,760
Scarborough, ME
18,760 residents
What this shows No single metro owns Maine: the top-10 cities share the map, and most of the 428 places are far smaller – use several peers before drilling to ZIP detail.
Counties in Maine
Which cities have the most ZIPs in Maine?
Side-by-side: Compare 04401 vs 04240 →
ZIP Codes in Maine
More ME ZIP codes
Official Data Resources for Maine
Compact ZIP geography: start at Census ACS for Maine, then BLS wages for the labor-market side of the same small map.
Frequently Asked Questions
Is Maine compact enough to browse ZIP by ZIP?
Yes – 432 codes and 16 counties put Maine in compact geography. Prefer the largest city page and its primary ZIP; the roll-ups here are quick census totals, not a substitute for opening one urban and one thin-edge code.
Why is Maine's average ZIP income a weak relocation signal by itself?
At $73,507, the state mean blends unlike county labor markets (homes average $283,606). Cost-of-living questions belong at county and ZIP scale: start from the most populous counties, then drop to a thin-edge ZIP to see whether the mean is a real center or a blend.
Why doesn't one city define Maine?
Population is dispersed (largest share ~5% in Portland). Scan several peers on the largest-cities chart, then pick counties from different regions before drilling to ZIP detail – unweighted ZIP averages are especially noisy on a dispersed map.
Take this with you
What to do with Maine's numbers, next.
- See how Maine compares to a neighboring state on the same Census fields Compare states
- Check where Maine's ZIP codes rank nationally on income, education, or homeownership View national rankings
- Save a ZIP code to your shortlist to track alongside others you're considering View your shortlist
Figures describe 2019–2023 ACS 5-Year Estimates aggregated from ZIP Code Tabulation Areas (ZCTAs), Census Bureau approximations of USPS ZIP codes, not any single address.
Source: U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2019–2023); USPS ZIP Code Tabulation Areas via the HUD USPS Crosswalk.
Read our methodology to see how this data is sourced, computed, and verified.