ZIP code 81123
Where is ZIP code 81123?
Blanca, Colorado
Costilla County · Standard ZIP code
ZIP code 81123 belongs to Blanca, Colorado in Costilla County. 81123 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Mountain Time zone and uses area code 719. About 606 people live in the 81123 area, where the median household income is $36,487. The closest ZIP codes are 81133 (Fort Garland, 6.2 mi east), 81101 (Alamosa, 20 mi west) and 81126 (Chama, 20.2 mi south).
| ZIP code | 81123 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Blanca |
| State | Colorado (CO) |
| County | Costilla County |
| Time zone | Mountain Time · now |
| Area code | 719 |
| Coordinates | 37.4317, -105.5178 map |
| 3-digit prefix | 811 |
Population and income in 81123
| Population | 606 · lower than 75% of Colorado ZIP codes |
|---|---|
| People per square mile | 4 · lower than 74% of Colorado ZIP codes |
| Median age | 46.3 years · higher than 67% of Colorado ZIP codes |
| Men / women | 56% / 44% |
| Median household income | $36,487 · lower than 97% of Colorado ZIP codes |
| Income per person | $23,721 |
| Below the poverty line | 24% |
| Bachelor’s degree or higher | 19% of adults 25+ |
| Median home value | $152,400 · lower than 94% of Colorado ZIP codes |
| Median rent | $1,106 a month |
| Housing units | 396 |
| Households | 323 (1.88 people on average) |
| Owners / renters | 82% / 18% |
| Land area | 145.65 sq mi (plus 1.12 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 81123. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 81123
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 81133 | Fort Garland, CO | 6.2 mi E | Standard |
| 81101 | Alamosa, CO | 20 mi W | Standard |
| 81126 | Chama, CO | 20.2 mi S | PO Box only |
| 81102 | Alamosa, CO | 20.2 mi W | Unique |
| 81146 | Mosca, CO | 21.2 mi NW | Standard |
| 81152 | San Luis, CO | 22.6 mi S | Standard |
| 81151 | Sanford, CO | 24.4 mi SW | Standard |
| 81055 | La Veta, CO | 25.8 mi E | Standard |
| 81136 | Hooper, CO | 27.9 mi NW | Standard |
| 81140 | La Jara, CO | 28.5 mi W | Standard |
| 81141 | Manassa, CO | 28.7 mi SW | PO Box only |
| 81138 | Jaroso, CO | 30.2 mi S | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 81123 or measure the distance to another ZIP code.
How to address mail to 81123
123 MAIN ST
BLANCA CO 81123
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (81123-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 81123?
- 81123 is a Blanca, Colorado ZIP code.
- What county is 81123 in?
- ZIP code 81123 is in Costilla County, Colorado.
- What time zone is ZIP code 81123 in?
- 81123 is in the Mountain Time zone (America/Denver).
- What area code is 81123?
- Phone numbers in ZIP code 81123 use area code 719.
- What is the population of ZIP code 81123?
- About 606 people live in ZIP code 81123, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 81123?
- The median household income in 81123 is $36,487 a year, lower than 97% of Colorado ZIP codes.
- What ZIP codes are near 81123?
- The nearest ZIP codes to 81123 are 81133 (Fort Garland, 6.2 miles), 81101 (Alamosa, 20 miles), 81126 (Chama, 20.2 miles) and 81102 (Alamosa, 20.2 miles).