Residential delivery area · Georgia
ZIP Code 31811: Hamilton, GA
ZIP code 31811 uses the postal name Hamilton, Georgia and lies entirely in Harris County (Census 2020 ZIP-county file). About 6,100 people live there (Census Bureau, ACS 2020-2024). Median household income is $90,385 (Census Bureau, ACS 2020-2024). By Census place, 3% of its land lies in Hamilton, and under 1% in smaller places; 97% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Hamilton · its only residential ZIP
- County
- Harris County
- Census places
- Hamilton
- Metro area
- Columbus, GA-AL
- House district
- GA-3 119th Congress
- State
- Georgia
- Time zone
- Eastern
- Land area
- 130.8 sq mi · 46 people per sq mi
Where is ZIP code 31811?
31811 centers on 32.737°, -84.937° and covers 130.8 square miles of land plus 4.7 of water. It borders 9 ZIP codes: 31804, 31808, 31823, 31822, 31833, 31826, 36854, 31830, 36874.
The map draws ZIP code areas only. For the streets inside 31811, 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 31811 compare with the rest of Harris County?
| Measure | 31811 | In Harris County | In GA |
|---|---|---|---|
| People (ACS 2020-2024) | 6,052 | 5th of 12 | 378th of 751 |
| Median household income | $90k | 7th of 10 | 108th of 476 |
| Median home value | $295k | 6th of 8 | 175th of 474 |
Its median household income is higher than in 73% of U.S. residential ZIP codes, and it is denser than 41% 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 31811?
The 2020 Census counted 6,274 people in 31811; the ACS, which samples households over 2020-2024, estimates 6,052. Between the 2010 and 2020 censuses its population grew 22.9% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 6,052±806 (90% margin)
- 2020 Census count
- 6,274+22.9% since 2010 (5,103)
- Households
- 2,238
- Median age
- 43.6
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 31811?
Of the 6,052 people the ACS estimates in 31811, 19.2% are under 18 and 18.4% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (77.7%), then Black (not Hispanic) (14.5%).
- Under 1819.2%
- 18 to 6462.4%
- 65 and older18.4%
- White, not Hispanic77.7%
- Black, not Hispanic14.5%
- Other or two or more3.8%
- Hispanic or Latino3.6%
- Asian, not Hispanic0.3%
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 31811 earn?
Median household income is $90,385 (ACS 2020-2024), the 7th highest of the 10 ranked ZIP codes in Harris County. It is not measurably different from 2015-2019 ($105,046 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $90,385±$12,916
- Income per person
- $39,827
- Below the poverty line
- 11.3%
- Unemployed (of the labor force)
- 7.8%
- Adults 25+ with a bachelor's degree
- 32.9%
- Adjusted gross income per tax return, 2022
- $92,5692,650 returns; wages 66% 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 31811?
FHFA's house price index for 31811, built from repeat sales and appraisals of the same homes, rose 80% from 2015 to 2025 and rose 50% from 2020 to 2025, and moved +3.8% in 2025.
- Median home value (owners' estimate)
- $294,600
- Median gross rent
- $984
- Homes owned by their occupants
- 86.8%
- Housing units
- 2,465
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 31811?
94 business establishments had a location in this ZIP code in 2023, 10 more than in 2018; the most are in other services (except public administration) (ZIP Code Business Patterns).
- Other services (except public administration)14
- Construction12
- Real estate and rental and leasing10
- Retail trade9
- Professional, scientific, and technical services8
- Administrative and support and waste management and remediation services7
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 31811?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 31804 | Cataula | 6,318 | $103k | 6.1 mi |
| 31808 | Fortson | 8,893 | $109k | 8.5 mi |
| 31823 | Pine Mountain Valley | 519 | $71k | 8.4 mi |
| 31822 | Pine Mountain | 5,403 | $66k | 9.0 mi |
| 31833 | West Point | 6,815 | $61k | 11.6 mi |
| 31826 | Shiloh | 2,552 | $85k | 14.3 mi |
| 36854 | Valley, AL | 16,537 | $56k | 14.7 mi |
| 31830 | Warm Springs | 2,176 | $61k | 16.5 mi |
| 36874 | Salem, AL | 9,096 | $67k | 19.3 mi |
| 31807 | Ellerslie | 2,704 | $109k | 10.0 mi (near) |
| 31820 | Midland | 14,005 | $115k | 12.8 mi (near) |
| 31909 | Columbus | 39,364 | $69k | 13.1 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.