04106 ZIP Code, South Portland, ME
04106 is a ZIP code in South Portland, Maine in Cumberland County. It covers 12 square miles of land. The closest ZIP codes are 04102, 04101 and 04107. 27,019 people live here in 12,230 households, which puts it among the most populous 1% of Maine ZIP codes. At about 2,224 people per square mile it has suburban density, and owners and renters are mixed (58% own). Median household income is $86,188, above the Maine median of $74,733.
Quick facts
- Mailing city: South Portland, ME
- County: Cumberland County
- Land area: 12 sq mi
- Population: 27,019
- Median household income: $86,188
- Carrier routes: 30 (12,221 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 27,019 |
| Households | 12,230 |
| Median household income | $86,188 |
| Income per person | $50,622 |
| Median age | 41.1 |
| Homeowners | 58.4% |
| Median home value | $438,800 |
| Median rent | $1,812 |
| Bachelor's degree or higher | 51.7% |
| Average commute (minutes) | 17.2 |
| Households with kids under 18 | 20.6% |
| Moved in the past year | 12.4% |
| Below the poverty line | 7.0% |
| Broadband internet | 91.5% |
| Speak a non-English language at home | 12.6% |
Household income
| % of households | Value |
|---|---|
| <$10K | 3.5% |
| $10–15K | 2.6% |
| $15–25K | 7.1% |
| $25–35K | 4.4% |
| $35–50K | 8.0% |
| $50–75K | 18.0% |
| $75–100K | 14.7% |
| $100–150K | 18.9% |
| $150–200K | 12.7% |
| $200K+ | 10.1% |
Age
| % of all residents | Value |
|---|---|
| <10 | 8.0% |
| 10–19 | 9.1% |
| 20–24 | 9.3% |
| 25–34 | 15.1% |
| 35–44 | 13.2% |
| 45–54 | 11.9% |
| 55–64 | 12.4% |
| 65–74 | 12.0% |
| 75+ | 9.0% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 38.8% |
| Owned outright | 17.9% |
| Rented | 38.6% |
| Vacant | 4.8% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 53.3% |
| Townhome | 5.0% |
| 2–4 units | 14.9% |
| 5–19 units | 8.5% |
| 20+ units | 17.3% |
| Mobile / other | 0.9% |
Businesses in 04106
1,238 business establishments with 24,278 employees (ZIP Codes Business Patterns 2023).
- Retail Trade: 241
- Health Care and Social Assistance: 171
- Accommodation and Food Services: 133
- Professional, Scientific, and Technical Services: 96
- Construction: 89
- Other Services (except Public Administration): 83
- Administrative and Support and Waste Management and Remediation Services: 77
- Finance and Insurance: 72
EDDM carrier routes
04106 has 30 USPS carrier routes with 12,221 residential and 1,224 business mailboxes. Open the EDDM route map.
Carrier routes in 04106
04106 has 30 USPS carrier routes (28 city (C), 2 rural (R)) with 12,221 residential and 1,224 business mailboxes. Routes range from 175 homes (R124) to 890 homes (C001); the median route has 415 homes. The Census counted 12,230 households in 04106 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 1 |
| 250–499 | 21 |
| 500–749 | 5 |
| 750–999 | 1 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 04106 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C002 — USPS business mailboxes 301, 0 homes
- Route C046 — USPS business mailboxes 243, 0 homes
- Route C090 — USPS business mailboxes 157, 379 homes
- Route C070 — USPS business mailboxes 114, 496 homes
- Route C074 — USPS business mailboxes 61, 322 homes
Select these 5 routes on the route map
Every carrier route in 04106
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C001 | City | 890 | 18 | $59,260 | — | — | — |
| C002 | City | 0 | 301 | $128,536 | — | — | — |
| C003 | City | 382 | 4 | $94,043 | — | — | — |
| C012 | City | 556 | 23 | $94,415 | — | — | — |
| C014 | City | 442 | 0 | $93,048 | — | — | — |
| C024 | City | 366 | 3 | $79,871 | — | — | — |
| C032 | City | 382 | 11 | $101,426 | — | — | — |
| C046 | City | 0 | 243 | $64,386 | — | — | — |
| C047 | City | 570 | 7 | $116,142 | — | — | — |
| C048 | City | 490 | 5 | $79,871 | — | — | — |
| C070 | City | 496 | 114 | $64,386 | — | — | — |
| C072 | City | 472 | 2 | $100,388 | — | — | — |
| C074 | City | 322 | 61 | $94,415 | — | — | — |
| C078 | City | 428 | 12 | $94,043 | — | — | — |
| C081 | City | 540 | 14 | $116,142 | — | — | — |
| C082 | City | 493 | 27 | $63,220 | — | — | — |
| C087 | City | 282 | 2 | $127,188 | — | — | — |
| C089 | City | 326 | 11 | $178,548 | — | — | — |
| C090 | City | 379 | 157 | $49,369 | — | — | — |
| C091 | City | 356 | 3 | $151,821 | — | — | — |
| C092 | City | 398 | 2 | $128,536 | — | — | — |
| C093 | City | 528 | 49 | $94,043 | — | — | — |
| C096 | City | 599 | 2 | $59,260 | — | — | — |
| C098 | City | 362 | 26 | $93,048 | — | — | — |
| C099 | City | 423 | 60 | $71,728 | — | — | — |
| C100 | City | 366 | 7 | $103,075 | — | — | — |
| C101 | City | 319 | 44 | $100,388 | — | — | — |
| C102 | City | 406 | 12 | $128,536 | — | — | — |
| R123 | Rural | 473 | 4 | $117,060 | — | — | — |
| R124 | Rural | 175 | 0 | $103,075 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 04106 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
- 04102 — Portland city, ME (1.7 mi)
- 04101 — Portland city, ME (2.6 mi)
- 04107 — South Portland city, ME (3.9 mi)
- 04109 — Portland city, ME (3.9 mi)
- 04103 — Portland city, ME (4.4 mi)
- 04074 — Oak Hill CDP, ME (4.9 mi)
- 04108 — Portland city, ME (5 mi)
- 04092 — Westbrook city, ME (6.2 mi)
Areas that include 04106
- South Portland, ME ZIP codes — 1 ZIP code
- Cumberland County ZIP codes — 38 ZIP codes
- Maine ZIP code data
Where it ranks
Mail every home in 04106
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) 04106, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 04106 in?
- 04106 is a South Portland, ME mailing address. By land area, 99% lies inside South Portland.
- What county is 04106 in?
- 04106 is in Cumberland County.
- What is the population of 04106?
- About 27,019 people (±117), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 26,641.
- What is the median household income in 04106?
- $86,188 (±$6,857), 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 04106?
- 30 USPS carrier routes with 12,221 residential and 1,224 business mailboxes (13,404 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 04106?
- The closest, measured center to center: 04102 (1.7 mi, Portland), 04101 (2.6 mi, Portland), 04107 (3.9 mi, South Portland), 04109 (3.9 mi, Portland), 04103 (4.4 mi, Portland) and 04074 (4.9 mi, Oak Hill).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.