Residential delivery area · Colorado
ZIP Code 81223: Cotopaxi, CO
ZIP code 81223 uses the postal name Cotopaxi, Colorado and lies entirely in Fremont County (Census 2020 ZIP-county file). About 2,500 people live there (Census Bureau, ACS 2020-2024). Median household income is $51,889 (Census Bureau, ACS 2020-2024). By Census place, under 1% of its land lies in Cotopaxi (a census-designated place); more than 99% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Cotopaxi · its only residential ZIP
- County
- Fremont County
- Census places
- Cotopaxi census-designated place
- Micro area
- Cañon City, CO
- House district
- CO-7 119th Congress
- State
- Colorado
- Time zone
- Mountain
- Land area
- 401.8 sq mi · 6 people per sq mi
Where is ZIP code 81223?
81223 centers on 38.365°, -105.613° and covers 401.8 square miles of land plus 0.0 of water. It borders 6 ZIP codes: 81232, 81222, 81233, 81212, 81143, 81252.
The map draws ZIP code areas only. For the streets inside 81223, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 81223 compare with the rest of Fremont County?
| Measure | 81223 | In Fremont County | In CO |
|---|---|---|---|
| People (ACS 2020-2024) | 2,457 | 5th of 12 | 268th of 527 |
| Median household income | $52k | 5th of 5 | 266th of 277 |
| Median home value | $356k | 2nd of 5 | 242nd of 311 |
Its median household income is higher than in 17% of U.S. residential ZIP codes, and it is denser than 12% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 81223?
The 2020 Census counted 2,190 people in 81223; the ACS, which samples households over 2020-2024, estimates 2,457. Between the 2010 and 2020 censuses its population grew 33.6% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 2,457±413 (90% margin)
- 2020 Census count
- 2,190+33.6% since 2010 (1,639)
- Households
- 1,116
- Median age
- 59.6
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 81223?
Of the 2,457 people the ACS estimates in 81223, 12.9% are under 18 and 36.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (92.1%).
- Under 1812.9%
- 18 to 6450.8%
- 65 and older36.3%
- White, not Hispanic92.1%
- Hispanic or Latino4.3%
- Black, not Hispanic2.7%
- Other or two or more0.5%
- Asian, not Hispanic0.4%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 81223 earn?
Median household income is $51,889 (ACS 2020-2024), the 5th highest of the 5 ranked ZIP codes in Fremont County. It is not measurably different from 2015-2019 ($41,058 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $51,889±$12,021
- Income per person
- $30,813
- Below the poverty line
- 25.1%
- Unemployed (of the labor force)
- 1.5%
- Adults 25+ with a bachelor's degree
- 26.7%
- Adjusted gross income per tax return, 2022
- $62,3401,060 returns; wages 49% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 81223?
FHFA's house price index for 81223, built from repeat sales and appraisals of the same homes, rose 95% from 2015 to 2025 and rose 30% from 2020 to 2025.
- Median home value (owners' estimate)
- $355,800
- Median gross rent
- $1,699
- Homes owned by their occupants
- 91.6%
- Housing units
- 1,803
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 81223?
24 business establishments had a location in this ZIP code in 2023, 1 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction8
- Professional, scientific, and technical services4
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 81223?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 81232 | Hillside | 0 | – | 6.2 mi |
| 81222 | Coaldale | 538 | – | 11.0 mi |
| 81233 | Howard | 966 | $60k | 14.0 mi |
| 81212 | Canon City | 32,292 | $64k | 16.0 mi |
| 81143 | Moffat | 796 | $31k | 19.2 mi |
| 81252 | Westcliffe | 4,763 | $70k | 20.2 mi |
| 81244 | Rockvale | 660 | $51k | 24.3 mi (near) |
| 81155 | Villa Grove | 228 | $75k | 25.1 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.