80231 ZIP Code, Denver, CO
80231 is a ZIP code in Denver, Colorado — mostly in Denver County (58% of its land), with smaller parts in Arapahoe County. It covers 4.9 square miles of land. The closest ZIP codes are 80224, 80247 and 80222. 35,883 people live here in 16,395 households. At about 7,350 people per square mile it is built up to city-neighborhood density, and most households rent (40% own). Median household income is $76,502, below the Colorado median of $95,470; 24% of residents moved in during the past year.
Quick facts
- Mailing city: Denver, CO
- County: Denver County
- Land area: 4.9 sq mi
- Population: 35,883
- Median household income: $76,502
- Carrier routes: 21 (17,774 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 35,883 |
| Households | 16,395 |
| Median household income | $76,502 |
| Income per person | $45,948 |
| Median age | 33.3 |
| Homeowners | 39.6% |
| Median home value | $500,600 |
| Median rent | $1,764 |
| Bachelor's degree or higher | 51.9% |
| Average commute (minutes) | 26.1 |
| Households with kids under 18 | 23.5% |
| Moved in the past year | 23.9% |
| Below the poverty line | 15.4% |
| Broadband internet | 93.3% |
| Speak a non-English language at home | 26.5% |
Household income
| % of households | Value |
|---|---|
| <$10K | 5.0% |
| $10–15K | 4.3% |
| $15–25K | 5.8% |
| $25–35K | 6.4% |
| $35–50K | 11.7% |
| $50–75K | 15.5% |
| $75–100K | 15.1% |
| $100–150K | 15.4% |
| $150–200K | 10.0% |
| $200K+ | 10.7% |
Age
| % of all residents | Value |
|---|---|
| <10 | 12.1% |
| 10–19 | 10.2% |
| 20–24 | 6.9% |
| 25–34 | 24.2% |
| 35–44 | 15.5% |
| 45–54 | 9.3% |
| 55–64 | 8.8% |
| 65–74 | 6.9% |
| 75+ | 6.0% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 25.0% |
| Owned outright | 10.7% |
| Rented | 54.1% |
| Vacant | 10.2% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 21.1% |
| Townhome | 12.4% |
| 2–4 units | 7.6% |
| 5–19 units | 31.5% |
| 20+ units | 27.1% |
| Mobile / other | 0.2% |
Businesses in 80231
953 business establishments with 15,771 employees (ZIP Codes Business Patterns 2023).
- Health Care and Social Assistance: 147
- Professional, Scientific, and Technical Services: 134
- Retail Trade: 100
- Other Services (except Public Administration): 94
- Construction: 78
- Real Estate and Rental and Leasing: 73
- Accommodation and Food Services: 68
- Administrative and Support and Waste Management and Remediation Services: 63
EDDM carrier routes
80231 has 21 USPS carrier routes with 17,774 residential and 1,227 business mailboxes. Open the EDDM route map.
Carrier routes in 80231
80231 has 21 USPS carrier routes (21 city (C)) with 17,774 residential and 1,227 business mailboxes. Routes range from 323 homes (C028) to 1,960 homes (C026); the median route has 790 homes. The Census counted 16,395 households in 80231 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 3 |
| 500–749 | 7 |
| 750–999 | 5 |
| 1,000–1,499 | 5 |
| 1,500+ | 1 |
Best routes in 80231 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C002 — USPS business mailboxes 226, 876 homes
- Route C042 — USPS business mailboxes 206, 790 homes
- Route C062 — USPS business mailboxes 159, 737 homes
- Route C028 — USPS business mailboxes 156, 323 homes
- Route C059 — USPS business mailboxes 133, 987 homes
Select these 5 routes on the route map
Every carrier route in 80231
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C001 | City | 1,160 | 6 | $55,425 | — | — | — |
| C002 | City | 876 | 226 | $54,501 | — | — | — |
| C003 | City | 706 | 66 | $93,321 | — | — | — |
| C004 | City | 988 | 112 | $132,456 | — | — | — |
| C005 | City | 1,166 | 93 | $131,177 | — | — | — |
| C008 | City | 543 | 1 | $96,630 | — | — | — |
| C010 | City | 401 | 7 | $131,177 | — | — | — |
| C016 | City | 1,243 | 3 | $76,361 | — | — | — |
| C018 | City | 530 | 3 | $62,755 | — | — | — |
| C022 | City | 1,076 | 37 | $66,164 | — | — | — |
| C024 | City | 663 | 1 | $116,983 | — | — | — |
| C026 | City | 1,960 | 8 | $93,321 | — | — | — |
| C027 | City | 503 | 0 | $131,177 | — | — | — |
| C028 | City | 323 | 156 | $186,483 | — | — | — |
| C034 | City | 333 | 0 | $175,985 | — | — | — |
| C041 | City | 877 | 1 | $86,811 | — | — | — |
| C042 | City | 790 | 206 | $84,622 | — | — | — |
| C048 | City | 1,365 | 7 | $42,034 | — | — | — |
| C059 | City | 987 | 133 | $76,361 | — | — | — |
| C062 | City | 737 | 159 | $82,064 | — | — | — |
| C066 | City | 547 | 2 | $131,177 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 80231 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
- 80224 — Denver city, CO (1.7 mi)
- 80247 — Denver city, CO (1.9 mi)
- 80222 — Denver city, CO (2.1 mi)
- 80237 — Denver city, CO (2.3 mi)
- 80014 — Aurora city, CO (2.7 mi)
- 80012 — Aurora city, CO (3.3 mi)
- 80246 — Denver city, CO (3.3 mi)
- 80230 — Denver city, CO (3.4 mi)
Areas that include 80231
- Denver, CO ZIP codes — 44 ZIP codes
- Four Square Mile, CO ZIP codes — 2 ZIP codes
- Arapahoe County ZIP codes — 26 ZIP codes
- Denver County ZIP codes — 35 ZIP codes
- Colorado ZIP code data
Where it ranks
- No. 8 of 30: lowest median age in Denver County
- No. 12 of 39: highest share of residents who moved in during the past year in Denver, CO
- No. 9 of 39: lowest median age in Denver, CO
Mail every home in 80231
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.
Denver EDDM mailing
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 80231, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 80231 in?
- 80231 is a Denver, CO mailing address. By land area, 58% lies inside Denver, 40% lies inside Four Square Mile and 1% lies inside Aurora.
- What county is 80231 in?
- 80231 is mostly in Denver County (58% of its land), with smaller parts in Arapahoe County.
- What is the population of 80231?
- About 35,883 people (±2,577), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 36,014.
- What is the median household income in 80231?
- $76,502 (±$5,470), compared with $95,470 for Colorado as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 80231?
- 21 USPS carrier routes with 17,774 residential and 1,227 business mailboxes (19,001 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 80231?
- The closest, measured center to center: 80224 (1.7 mi, Denver), 80247 (1.9 mi, Denver), 80222 (2.1 mi, Denver), 80237 (2.3 mi, Denver), 80014 (2.7 mi, Aurora) and 80012 (3.3 mi, Aurora).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.