04101 ZIP Code, Portland, ME
04101 is a ZIP code in Portland, Maine in Cumberland County. It covers 2.0 square miles of land. The closest ZIP codes are 04109, 04102 and 04106. 18,431 people live here in 10,608 households, more than in 9 of every 10 Maine ZIP codes. At about 9,088 people per square mile it is built up to city-neighborhood density, and most households rent (23% own). Median household income is $63,880, below the Maine median of $74,733; 23% of residents moved in during the past year.
Quick facts
- Mailing city: Portland, ME
- County: Cumberland County
- Land area: 2.0 sq mi
- Population: 18,431
- Median household income: $63,880
- Carrier routes: 23 (11,789 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 18,431 |
| Households | 10,608 |
| Median household income | $63,880 |
| Income per person | $53,597 |
| Median age | 35.8 |
| Homeowners | 22.7% |
| Median home value | $617,600 |
| Median rent | $1,566 |
| Bachelor's degree or higher | 58.1% |
| Average commute (minutes) | 19.3 |
| Households with kids under 18 | 9.1% |
| Moved in the past year | 23.0% |
| Below the poverty line | 17.5% |
| Broadband internet | 88.9% |
| Speak a non-English language at home | 16.9% |
Household income
| % of households | Value |
|---|---|
| <$10K | 7.1% |
| $10–15K | 6.1% |
| $15–25K | 4.7% |
| $25–35K | 9.0% |
| $35–50K | 12.3% |
| $50–75K | 16.7% |
| $75–100K | 12.8% |
| $100–150K | 17.3% |
| $150–200K | 6.6% |
| $200K+ | 7.3% |
Age
| % of all residents | Value |
|---|---|
| <10 | 6.4% |
| 10–19 | 3.9% |
| 20–24 | 9.1% |
| 25–34 | 29.6% |
| 35–44 | 14.8% |
| 45–54 | 10.8% |
| 55–64 | 9.4% |
| 65–74 | 9.0% |
| 75+ | 7.0% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 12.7% |
| Owned outright | 7.9% |
| Rented | 69.2% |
| Vacant | 10.2% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 7.4% |
| Townhome | 1.8% |
| 2–4 units | 29.0% |
| 5–19 units | 29.9% |
| 20+ units | 31.4% |
| Mobile / other | 0.5% |
Businesses in 04101
2,071 business establishments with 39,563 employees (ZIP Codes Business Patterns 2023).
- Professional, Scientific, and Technical Services: 409
- Accommodation and Food Services: 265
- Retail Trade: 236
- Health Care and Social Assistance: 217
- Real Estate and Rental and Leasing: 174
- Finance and Insurance: 162
- Other Services (except Public Administration): 162
- Information: 73
EDDM carrier routes
04101 has 23 USPS carrier routes with 11,789 residential and 2,462 business mailboxes. Open the EDDM route map.
Carrier routes in 04101
04101 has 23 USPS carrier routes (23 city (C)) with 11,789 residential and 2,462 business mailboxes. Routes range from 91 homes (C008) to 1,014 homes (C029); the median route has 509 homes. The Census counted 10,608 households in 04101 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 5 |
| 250–499 | 5 |
| 500–749 | 8 |
| 750–999 | 4 |
| 1,000–1,499 | 1 |
| 1,500+ | 0 |
Best routes in 04101 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C008 — USPS business mailboxes 325, 91 homes
- Route C025 — USPS business mailboxes 233, 180 homes
- Route C018 — USPS business mailboxes 229, 134 homes
- Route C003 — USPS business mailboxes 224, 873 homes
- Route C012 — USPS business mailboxes 221, 110 homes
Select these 5 routes on the route map
Every carrier route in 04101
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C003 | City | 873 | 224 | $64,934 | — | — | — |
| C004 | City | 454 | 13 | $60,040 | — | — | — |
| C005 | City | 509 | 3 | $60,040 | — | — | — |
| C006 | City | 500 | 2 | $99,165 | — | — | — |
| C008 | City | 91 | 325 | $72,434 | — | — | — |
| C012 | City | 110 | 221 | $72,434 | — | — | — |
| C014 | City | 548 | 141 | $60,245 | — | — | — |
| C015 | City | 328 | 84 | $24,074 | — | — | — |
| C016 | City | 851 | 141 | $24,074 | — | — | — |
| C018 | City | 134 | 229 | $72,434 | — | — | — |
| C020 | City | 750 | 15 | $64,934 | — | — | — |
| C022 | City | 432 | 3 | $55,417 | — | — | — |
| C023 | City | 399 | 150 | $24,074 | — | — | — |
| C024 | City | 138 | 175 | $55,417 | — | — | — |
| C025 | City | 180 | 233 | $35,703 | — | — | — |
| C027 | City | 705 | 9 | $64,124 | — | — | — |
| C029 | City | 1,014 | 39 | $60,900 | — | — | — |
| C032 | City | 554 | 23 | $60,040 | — | — | — |
| C064 | City | 625 | 138 | $78,392 | — | — | — |
| C166 | City | 730 | 71 | $99,165 | — | — | — |
| C167 | City | 876 | 41 | $63,089 | — | — | — |
| C170 | City | 333 | 135 | $63,089 | — | — | — |
| C171 | City | 655 | 47 | $64,934 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 04101 on the EDDM route map.
How route demographics are estimated
Mailbox counts come from USPS; demographics are estimates
The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).
How a route gets its figures: the block-group length-share method
We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.
Margins of error
Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.
Different years
USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.
Why some routes show identical figures
Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.
Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Nearby ZIP codes
- 04109 — Portland city, ME (1.8 mi)
- 04102 — Portland city, ME (2.1 mi)
- 04106 — South Portland city, ME (2.6 mi)
- 04103 — Portland city, ME (2.7 mi)
- 04108 — Portland city, ME (4 mi)
- 04107 — South Portland city, ME (5.3 mi)
- 04050 (5.5 mi)
- 04105 — Falmouth CDP, ME (5.5 mi)
Areas that include 04101
- Portland, ME ZIP codes — 6 ZIP codes
- Cumberland County ZIP codes — 38 ZIP codes
- Maine ZIP code data
Where it ranks
- No. 5 of 28: highest median home value in Cumberland County
- No. 1 of 28: highest share of residents who moved in during the past year in Cumberland County
- No. 1 of 28: lowest median age in Cumberland County
- No. 8 of 28: fastest population growth in Cumberland County
Mail every home in 04101
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 04101, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 04101 in?
- 04101 is a Portland, ME mailing address. By land area, 100% lies inside Portland.
- What county is 04101 in?
- 04101 is in Cumberland County.
- What is the population of 04101?
- About 18,431 people (±946), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 18,109.
- What is the median household income in 04101?
- $63,880 (±$5,823), compared with $74,733 for Maine as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 04101?
- 23 USPS carrier routes with 11,789 residential and 2,462 business mailboxes (14,228 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 04101?
- The closest, measured center to center: 04109 (1.8 mi, Portland), 04102 (2.1 mi, Portland), 04106 (2.6 mi, South Portland), 04103 (2.7 mi, Portland), 04108 (4 mi, Portland) and 04107 (5.3 mi, South Portland).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.