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Where 81043 is
Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.
- 🔢 Type 81043 into a pocket calculator and turn it upside down: EhOIB — not quite a word, sorry.
- ➕ 81043 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 16, a total 1,922 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10011110010010011 - 🏠 Its numerical neighbours: 81041 (Granada, CO, 21 mi away) and 81044 (Hasty, CO, 43 mi away).
- 🔄 Backwards, 81043 becomes 34018, which is not a ZIP code at all.
- 👥 54 other ZIP codes are made of exactly the same digits (01438, 01834, 01843, 03814, 03841, 08314, …). The farthest-flung twin is 01834 in Groveland, MA, 1,662 miles away.
- 🧭 Farther south than 57% of all ZIP codes, and farther west than 81%.
- 🎯229 miles southwest of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 81043 and you would come out at 38.12°S, 77.78°E — 862 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 49m of daylight. Shortest: 9h 31m.
- 📏 At 0.351 square miles of land, 81043 is bigger than 4% of ZIP codes — about 170 football fields.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 30This ZIP30 |
|---|---|
| Households | 22This ZIP22 |
| Housing units | 29This ZIP29 |
| Median age | 58.8This ZIP58.8Colorado37.7US 38.9 |
| Median household income | $12,955This ZIP$12,955Colorado$95,470US $80,734 |
| Bachelor's degree or higher | 0.0% |
| Population density | 85.5 / sq miThis ZIP85.5 / sq mi |
Land area
| Land area | 0.35 sq miThis ZIP0.35 sq mi |
|---|---|
| Water area | 0.00 sq mi |
Other place names in 81043
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 81043
| ZIP | City | Distance |
|---|---|---|
81047 | Holly, CO | 7.8 mi |
67836 | Coolidge, KS | 13.6 mi |
81041 | Granada, CO | 20.8 mi |
81071 | Sheridan Lake, CO | 21.8 mi |
67878 | Syracuse, KS | 23.8 mi |
81052 | Lamar, CO | 24.8 mi |
67879 | Tribune, KS | 33.6 mi |
81057 | Mc Clave, CO | 36.9 mi |
81036 | Eads, CO | 37.0 mi |
67857 | Kendall, KS | 37.8 mi |
Find every ZIP code within 10 miles of 81043 →
Questions about this ZIP code
Where is ZIP code 81043?
81043 is in Hartman, Colorado, in Prowers County. Its published point location is 38.1197, -102.2231.
What county is 81043 in?
81043 lies in Prowers County.
What area code is 81043?
Hartman uses area code 719, from NANPA's telephone records.
What time zone is 81043 in?
81043 uses America/Denver.
How many people live in 81043?
About 30 people live in ZIP code 81043, in 22 households, at 85.5 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What is the median household income in 81043?
$12,955 a year, against $95,470 across Colorado.
What ZIP codes are near 81043?
The closest are 81047 (7.8 mi), 67836 (13.6 mi), 81041 (20.8 mi), 81071 (21.8 mi) and 67878 (23.8 mi).
Is 81043 a PO Box ZIP code?
81043 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “81043 ZIP Code — Hartman, Colorado (Prowers County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/81043
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/81043.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.