55120 ZIP Code, Saint Paul, MN
55120 is a ZIP code in Saint Paul, Minnesota in Dakota County. It covers 5.4 square miles of land. The closest ZIP codes are 55150, 55121 and 55111. 5,058 people live here in 2,102 households. With about 935 people per square mile it is lightly settled, and owners and renters are mixed (61% own). Median household income is $116,346, above the Minnesota median of $89,062.
Quick facts
- Mailing city: Saint Paul, MN
- County: Dakota County
- Land area: 5.4 sq mi
- Population: 5,058
- Median household income: $116,346
- Carrier routes: 4 (2,211 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 5,058 |
| Households | 2,102 |
| Median household income | $116,346 |
| Income per person | $64,902 |
| Median age | 41 |
| Homeowners | 61.3% |
| Median home value | $515,600 |
| Median rent | $1,628 |
| Bachelor's degree or higher | 57.6% |
| Average commute (minutes) | 19.3 |
| Households with kids under 18 | 30.6% |
| Moved in the past year | 8.0% |
| Below the poverty line | 3.1% |
| Broadband internet | 95.1% |
| Speak a non-English language at home | 10.9% |
Household income
| % of households | Value |
|---|---|
| <$10K | 1.5% |
| $10–15K | 1.5% |
| $15–25K | 4.4% |
| $25–35K | 4.6% |
| $35–50K | 10.5% |
| $50–75K | 13.7% |
| $75–100K | 8.2% |
| $100–150K | 20.8% |
| $150–200K | 10.0% |
| $200K+ | 24.6% |
Age
| % of all residents | Value |
|---|---|
| <10 | 11.8% |
| 10–19 | 16.8% |
| 20–24 | 3.8% |
| 25–34 | 9.9% |
| 35–44 | 12.7% |
| 45–54 | 10.1% |
| 55–64 | 14.6% |
| 65–74 | 13.3% |
| 75+ | 7.0% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 39.1% |
| Owned outright | 22.5% |
| Rented | 37.8% |
| Vacant | 0.7% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 47.4% |
| Townhome | 19.7% |
| 2–4 units | 8.6% |
| 5–19 units | 1.4% |
| 20+ units | 22.7% |
| Mobile / other | 0.2% |
Businesses in 55120
398 business establishments with 13,061 employees (ZIP Codes Business Patterns 2023).
- Professional, Scientific, and Technical Services: 64
- Finance and Insurance: 59
- Health Care and Social Assistance: 47
- Wholesale Trade: 42
- Administrative and Support and Waste Management and Remediation Services: 27
- Construction: 25
- Other Services (except Public Administration): 25
- Transportation and Warehousing: 18
EDDM carrier routes
55120 has 4 USPS carrier routes with 2,211 residential and 323 business mailboxes. Open the EDDM route map.
Carrier routes in 55120
55120 has 4 USPS carrier routes (4 city (C)) with 2,211 residential and 323 business mailboxes. Routes range from 205 homes (C069) to 782 homes (C041); the median route has 612 homes. The Census counted 2,102 households in 55120 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 1 |
| 250–499 | 1 |
| 500–749 | 1 |
| 750–999 | 1 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 55120 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C069 — USPS business mailboxes 181, 205 homes
- Route C009 — USPS business mailboxes 59, 492 homes
- Route C041 — USPS business mailboxes 42, 782 homes
- Route C008 — USPS business mailboxes 41, 732 homes
Select these 4 routes on the route map
Every carrier route in 55120
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C008 | City | 732 | 41 | $200,001+ | — | — | — |
| C009 | City | 492 | 59 | $66,643 | — | — | — |
| C041 | City | 782 | 42 | $79,906 | — | — | — |
| C069 | City | 205 | 181 | $79,906 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 55120 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
- 55150 — Mendota city, MN (0.9 mi)
- 55121 — Eagan city, MN (2.1 mi)
- 55111 (2.2 mi)
- 55116 — St. Paul city, MN (2.6 mi)
- 55118 — West St. Paul city, MN (2.7 mi)
- 55450 — Minneapolis city, MN (3.8 mi)
- 55102 — St. Paul city, MN (4.1 mi)
- 55105 — St. Paul city, MN (4.1 mi)
Areas that include 55120
- Mendota Heights, MN ZIP codes — 3 ZIP codes
- Saint Paul, MN ZIP codes — 31 ZIP codes
- Dakota County ZIP codes — 21 ZIP codes
- Minnesota ZIP code data
Where it ranks
- No. 6 of 19: highest median household income in Dakota County
- No. 2 of 19: highest median home value in Dakota County
- No. 6 of 19: highest median age in Dakota County
- No. 3 of 19: fastest population growth in Dakota County
- No. 6 of 29: highest median household income in Saint Paul, MN
- No. 2 of 29: highest median home value in Saint Paul, MN
- No. 7 of 29: highest median age in Saint Paul, MN
- No. 3 of 29: fastest population growth in Saint Paul, MN
Mail every home in 55120
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) 55120, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 55120 in?
- 55120 is a Saint Paul, MN mailing address. By land area, 100% lies inside Mendota Heights.
- What county is 55120 in?
- 55120 is in Dakota County.
- What is the population of 55120?
- About 5,058 people (±479), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 4,752.
- What is the median household income in 55120?
- $116,346 (±$15,383), compared with $89,062 for Minnesota as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 55120?
- 4 USPS carrier routes with 2,211 residential and 323 business mailboxes (2,531 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 55120?
- The closest, measured center to center: 55150 (0.9 mi, Mendota), 55121 (2.1 mi, Eagan), 55111 (2.2 mi), 55116 (2.6 mi, St. Paul), 55118 (2.7 mi, West St. Paul) and 55450 (3.8 mi, Minneapolis).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.