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Where 31091 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 31091 into a pocket calculator and turn it upside down: IGOIE — not quite a word, sorry.
- ➕ 31091 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 14, a total 1,416 other ZIP codes share.
- 💾In binary, the way a computer stores it:
111100101110011 - 🏠 Its numerical neighbours: 31090 (Toomsboro, GA, 54 mi away) and 31092 (Vienna, GA, 11 mi away).
- 🔄 Backwards, 31091 becomes 19013 — and that is a real ZIP code: Chester, PA, 701 miles away.
- 👥 27 other ZIP codes are made of exactly the same digits (01139, 01913, 01931, 03911, 09131, 10913, …). The farthest-flung twin is 09131 in APO AE, a military post office, 4,691 miles away.
- 🧭 Farther south than 87% of all ZIP codes, and farther east than 61%.
- 🎯981 miles southeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 31091 and you would come out at 32.24°S, 96.30°E — 1,144 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 16m of daylight. Shortest: 10h 02m.
- 📏 At 92.0 square miles of land, 31091 is bigger than 76% of ZIP codes — room for about 70 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 4,204This ZIP4,204 |
|---|---|
| Households | 936This ZIP936 |
| Housing units | 1,213This ZIP1,213 |
| Median age | 45.0This ZIP45.0Georgia37.6US 38.9 |
| Median household income | $72,386This ZIP$72,386Georgia$77,353US $80,734 |
| Median home value | $82,600This ZIP$82,600Georgia$303,300US $332,700 |
| Median gross rent | $790This ZIP$790Georgia$1,393US $1,413 |
| Bachelor's degree or higher | 11.8%This ZIP11.8% |
| Mean commute | 26.0 minThis ZIP26.0 min |
| Population density | 45.7 / sq miThis ZIP45.7 / sq mi |
Business and tax activity
| Business establishments | 52This ZIP52 |
|---|---|
| Employees | 461This ZIP461 |
| Annual payroll | $20,770,000This ZIP$20,770,000 |
| Tax returns filed | 1,050This ZIP1,050 |
| Total adjusted gross income | $44,408,000This ZIP$44,408,000 |
Land area
| Land area | 92.00 sq miThis ZIP92.00 sq mi |
|---|---|
| Water area | 1.45 sq miThis ZIP1.45 sq mi |
Counties 31091 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Dooly County | 94.8% |
| Pulaski County | 2.7% |
| Houston County | 2.5% |
Other place names in 31091
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 31091
| ZIP | City | Distance |
|---|---|---|
31070 | Pinehurst, GA | 6.1 mi |
31013 | Clinchfield, GA | 7.0 mi |
31025 | Elko, GA | 7.1 mi |
31092 | Vienna, GA | 11.2 mi |
31051 | Lilly, GA | 12.1 mi |
31071 | Pineview, GA | 12.2 mi |
31036 | Hawkinsville, GA | 12.6 mi |
31007 | Byromville, GA | 13.5 mi |
31069 | Perry, GA | 14.2 mi |
31063 | Montezuma, GA | 15.5 mi |
Find every ZIP code within 10 miles of 31091 →
Questions about this ZIP code
Where is ZIP code 31091?
31091 is in Unadilla, Georgia, in Dooly County. Its published point location is 32.2379, -83.7045.
What county is 31091 in?
31091 spans 3 counties: Dooly County, Pulaski County and Houston County. Most of it falls in Dooly County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.
What area code is 31091?
Unadilla uses area code 478, from NANPA's telephone records.
What time zone is 31091 in?
31091 uses America/New_York.
How many people live in 31091?
About 4,204 people live in ZIP code 31091, in 936 households, at 45.7 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 31091?
$72,386 a year, against $77,353 across Georgia.
What ZIP codes are near 31091?
The closest are 31070 (6.1 mi), 31013 (7 mi), 31025 (7.1 mi), 31092 (11.2 mi) and 31051 (12.1 mi).
Is 31091 a PO Box ZIP code?
31091 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “31091 ZIP Code — Unadilla, Georgia (Dooly County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/31091
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/31091.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.