Postal Codes

31811 ZIP Code

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ZIP code 31811 covers Hamilton, Georgia, with a population of about 5,976 and a median household income of $91,290.

Population
5,97646 per square mile
Median age
423.3 points above the US average
Median household income
$91,2901.2× the Georgia median
Poverty rate
8.2%4.2 points below the US average
Typical home value
$395,791up 31.9% in five years
Median rent
$1,02821% below the Georgia median
Degree or higher
33.9%1.1 points below the US average
Homeownership
85.9%20.9 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
90

Where 31811 is

Hamilton, Georgia — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population5,976
Median age42
Family households75.9%
Born outside the US0.8%
Speaks a language other than English at home3.6%
White (non-Hispanic)79.3%
Black (non-Hispanic)13.1%
Asian (non-Hispanic)0.1%
Hispanic or Latino3%
Veterans9.6%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$91,290
Income per person$39,368
Poverty rate8.2%
Households on SNAP or cash assistance12.1%

Household income distribution

Under $10k4.5%
$10–15k4.4%
$15–20k2.7%
$20–25k1.5%
$25–30k1.6%
$30–35k5.0%
$35–40k3.4%
$40–45k1.1%
$45–50k2.2%
$50–60k4.5%
$60–75k10.8%
$75–100k12.0%
$100–125k11.3%
$125–150k11.2%
$150–200k12.2%
$200k or more11.7%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed2,650
Mean adjusted gross income$92,569
Returns declaring $200,000 or more8.3%
Returns, under $25k25.3%
Returns, $25k–$50k21.1%
Returns, $50k–$75k12.8%
Returns, $75k–$100k11.3%
Returns, $100k–$200k21.1%
Returns, $200k or more8.3%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$266,400
Median gross rent$1,028
Owner-occupied85.9%
Vacant homes10%
Median year built2000

What the homes are

Detached house88.3%
Attached house1.9%
2 to 4 units2.3%
5 to 19 units1%
Mobile home6.6%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$395,791as of 2026-07
Typical home value, 1 yearup 6.6%
Typical home value, 5 yearsup 31.9%
Typical home value, 10 yearsup 90.5%
Typical home value since 2000
200920172026$395,791$185,309

$214,048 in 2009 to $395,791 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate4.6%
Bachelor's degree or higher33.9%
High school diploma or higher91.5%
Works from home6.4%
Drives to work alone86.3%
Takes public transport0.6%
Commutes 45 minutes or more10.7%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity33.2% same as the national average of 33.4%
Diagnosed diabetes11.6% same as the national average of 12%
Currently smokes12.9% same as the national average of 13.2%
High blood pressure35.3% 1.2 pts above the national average of 34.1%
Fair or poor general health17.3% 3 pts below the national average of 20.3%
No health insurance (18–64)10.2% 1.1 pts below the national average of 11.3%
Depression19.5% 2.4 pts below the national average of 21.9%
No leisure-time physical activity22.5% 2.9 pts below the national average of 25.4%
Arthritis26% 0.9 pts above the national average of 25.1%
Binge drinking16.9% 0.9 pts above the national average of 16%
Taking blood pressure medication77.4% 2.7 pts above the national average of 74.7%
Cancer (non-skin)8% same as the national average of 7.7%
Current asthma9.9% 0.5 pts below the national average of 10.4%
Coronary heart disease5.8% same as the national average of 6.2%
Routine check-up in past year78.5% 1.8 pts above the national average of 76.7%
Cholesterol screening87.4% 1.5 pts above the national average of 85.9%
Cognitive disability13.3% 1.5 pts below the national average of 14.8%
Colorectal screening69% 4.7 pts above the national average of 64.3%
COPD6.1% 0.5 pts below the national average of 6.6%
Visited a dentist65.2% 3.9 pts above the national average of 61.3%
Any disability27.7% 3 pts below the national average of 30.7%
Lacks emotional support21.8% 3 pts below the national average of 24.8%
Food insecurity12.1% 5 pts below the national average of 17.1%
Received food stamps9% 5.3 pts below the national average of 14.3%
Hearing disability6.2% 0.5 pts below the national average of 6.7%
High cholesterol37.6% 1.4 pts above the national average of 36.2%
Housing insecurity10.9% 2.9 pts below the national average of 13.8%
Independent living disability7.5% 0.9 pts below the national average of 8.4%
Lacks transport7.2% 2 pts below the national average of 9.2%
Loneliness34.9% 0.5 pts above the national average of 34.4%
Mammography use78.5% 2.6 pts above the national average of 75.9%
Poor mental health (14+ days)16.4% same as the national average of 16.8%
Mobility disability12.2% 1.8 pts below the national average of 14%
Poor physical health (14+ days)12.9% 0.6 pts below the national average of 13.5%
Self-care disability3.4% 0.6 pts below the national average of 4%
Utility shut-off threat6.9% 1.9 pts below the national average of 8.8%
Sleeps under 7 hours37.8% 1.4 pts above the national average of 36.4%
Stroke3.2% same as the national average of 3.4%
All natural teeth lost10.5% 2.5 pts below the national average of 13%
Vision disability4.3% 1.3 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments90
People employed585
Annual payroll$20,541,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 32.7% of US census tracts
FEMA ratingVery Low to Relatively Moderate across the 5 census tracts this ZIP code covers
Expected annual loss33.3 out of 100
Community resilience40.4 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Lightning94.4Very High at its worst in this ZIP code
Landslide83.6Relatively Low at its worst in this ZIP code
Wildfire79.1Relatively Low at its worst in this ZIP code
Hail73.5Relatively Moderate at its worst in this ZIP code
Hurricane66.9Relatively Moderate at its worst in this ZIP code
Strong wind61.6Relatively Moderate at its worst in this ZIP code
Tornado60Relatively High at its worst in this ZIP code
River flooding52.2Relatively High at its worst in this ZIP code
Heat wave51.7Relatively Moderate at its worst in this ZIP code
Ice storm42.6Relatively Low at its worst in this ZIP code
Earthquake41.1Relatively Low at its worst in this ZIP code
Winter weather24.1Relatively Low at its worst in this ZIP code
Cold wave19.5Relatively Low at its worst in this ZIP code
Drought7Relatively Moderate at its worst in this ZIP code
Compared with Georgia and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPGeorgiaUnited States
Median household income$91,290$74,664$78,538
Income per person$39,368$39,525$43,289
Poverty rate8.2%13.5%12.4%
Median home value$266,400$272,900$303,400
Median gross rent$1,028$1,306$1,348
Homeownership85.9%65.4%65%
Bachelor's degree or higher33.9%34.2%35%
Unemployment rate4.6%5.1%5.2%
Works from home6.4%14.2%13.5%
Born outside the US0.8%10.8%13.9%
Median age4237.438.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationMULBERRY GROVE, GA US23.2 km away
Rain in a year53 in

Average high and low by month

January58.5°F / 34.5°F4.92 in rain
February62.7°F / 37.5°F4.87 in rain
March69.9°F / 43.3°F5.38 in rain
April76.3°F / 49.4°F4.52 in rain
May82.8°F / 58.7°F3.69 in rain
June88.6°F / 66.8°F4.04 in rain
July91.2°F / 70°F4.73 in rain
August90.9°F / 69.9°F4.01 in rain
September86.9°F / 64.4°F4.04 in rain
October78.7°F / 53.4°F3.42 in rain
November68.1°F / 43.5°F4.24 in rain
December60.6°F / 36.8°F5.33 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

Harris County School District100% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability31more vulnerable than 31% of US census tracts
Socioeconomic status33more vulnerable than 33% of US census tracts
Household characteristics39more vulnerable than 39% of US census tracts
Racial and ethnic minority status37more vulnerable than 37% of US census tracts
Housing type and transport33more vulnerable than 33% of US census tracts
Walkability4.6 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

31823 Pine Mountain Valley, GA10.8 km away
31804 Cataula, GA13.5 km away
31822 Pine Mountain, GA14.7 km away
31831 Waverly Hall, GA15 km away
31807 Ellerslie, GA15.2 km away
31808 Fortson, GA16.7 km away
31826 Shiloh, GA19.2 km away
31820 Midland, GA20.2 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Harris County100% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area130.81 sq mi
Water area4.7 sq mi
Population density46 people per sq mi
Latitude, longitude32.7418, -84.8848

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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