Postal Codes

30557 ZIP Code

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ZIP code 30557 covers Martin, Georgia, with a population of about 4,905 and a median household income of $66,806.

Population
4,90584 per square mile
Median age
36.91.8 points below the US average
Median household income
$66,80611% below the Georgia median
Poverty rate
14.9%2.5 points above the US average
Typical home value
$311,978up 27.5% in five years
Median rent
$87533% below the Georgia median
Degree or higher
14.7%20.3 points below the US average
Homeownership
78.4%13.4 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
39

Where 30557 is

Martin, 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

Population4,905
Median age36.9
Family households68.9%
Born outside the US0.2%
Speaks a language other than English at home1.2%
White (non-Hispanic)87%
Black (non-Hispanic)8.4%
Asian (non-Hispanic)0%
Hispanic or Latino1%
Veterans11.5%
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$66,806
Income per person$32,087
Poverty rate14.9%
Households on SNAP or cash assistance11%

Household income distribution

Under $10k6.9%
$10–15k5.8%
$15–20k5.3%
$20–25k5.4%
$25–30k3.1%
$30–35k1.9%
$35–40k2.8%
$40–45k3.6%
$45–50k2.1%
$50–60k8.4%
$60–75k11.6%
$75–100k17.0%
$100–125k8.7%
$125–150k9.0%
$150–200k4.5%
$200k or more3.9%

Income as declared to the IRS

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

Tax returns filed2,330
Mean adjusted gross income$65,850
Returns declaring $200,000 or more3.9%
Returns, under $25k30.9%
Returns, $25k–$50k30.0%
Returns, $50k–$75k14.6%
Returns, $75k–$100k8.6%
Returns, $100k–$200k12.0%
Returns, $200k or more3.9%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$162,000
Median gross rent$875
Rent as a share of household income20.9%
Owner-occupied78.4%
Vacant homes28.2%
Median year built1992

What the homes are

Detached house61.3%
2 to 4 units0.3%
Mobile home38.4%
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$311,978as of 2026-07
Typical home value, 1 yearup 0.1%
Typical home value, 5 yearsup 27.5%
Typical home value, 10 yearsup 126.8%
Typical home value since 2000
200020132026$312,982$83,679

$83,679 in 2000 to $311,978 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate6.8%
Bachelor's degree or higher14.7%
High school diploma or higher85.7%
Works from home5.5%
Drives to work alone83.1%
Takes public transport0%
Commutes 45 minutes or more13.7%
Health

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

Obesity37.5% 4.1 pts above the national average of 33.4%
Diagnosed diabetes14.5% 2.5 pts above the national average of 12%
Currently smokes16.7% 3.5 pts above the national average of 13.2%
High blood pressure41.1% 7 pts above the national average of 34.1%
Fair or poor general health22.5% 2.2 pts above the national average of 20.3%
No health insurance (18–64)11.9% 0.6 pts above the national average of 11.3%
Depression22.3% same as the national average of 21.9%
No leisure-time physical activity28.9% 3.5 pts above the national average of 25.4%
Arthritis31.4% 6.3 pts above the national average of 25.1%
Binge drinking14.6% 1.4 pts below the national average of 16%
Taking blood pressure medication80.5% 5.8 pts above the national average of 74.7%
Cancer (non-skin)9.9% 2.2 pts above the national average of 7.7%
Current asthma10.5% same as the national average of 10.4%
Coronary heart disease8.4% 2.2 pts above the national average of 6.2%
Routine check-up in past year78.7% 2 pts above the national average of 76.7%
Cholesterol screening86.7% 0.8 pts above the national average of 85.9%
Cognitive disability16% 1.2 pts above the national average of 14.8%
Colorectal screening66.6% 2.3 pts above the national average of 64.3%
COPD9.3% 2.7 pts above the national average of 6.6%
Visited a dentist57.4% 3.9 pts below the national average of 61.3%
Any disability34.7% 4 pts above the national average of 30.7%
Lacks emotional support22.5% 2.3 pts below the national average of 24.8%
Food insecurity14.9% 2.2 pts below the national average of 17.1%
Received food stamps12% 2.3 pts below the national average of 14.3%
Hearing disability9% 2.3 pts above the national average of 6.7%
High cholesterol41.4% 5.2 pts above the national average of 36.2%
Housing insecurity11.5% 2.3 pts below the national average of 13.8%
Independent living disability9.9% 1.5 pts above the national average of 8.4%
Lacks transport8.2% 1 pts below the national average of 9.2%
Loneliness36.1% 1.7 pts above the national average of 34.4%
Mammography use73.4% 2.5 pts below the national average of 75.9%
Poor mental health (14+ days)18.1% 1.3 pts above the national average of 16.8%
Mobility disability17.1% 3.1 pts above the national average of 14%
Poor physical health (14+ days)16.3% 2.8 pts above the national average of 13.5%
Self-care disability4.7% 0.7 pts above the national average of 4%
Utility shut-off threat7.4% 1.4 pts below the national average of 8.8%
Sleeps under 7 hours34.9% 1.5 pts below the national average of 36.4%
Stroke4.4% 1 pts above the national average of 3.4%
All natural teeth lost16.1% 3.1 pts above the national average of 13%
Vision disability5.8% same as the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments39
People employed217
Annual payroll$10,405,000
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 44.1% of US census tracts
FEMA ratingVery Low to Relatively Moderate across the 7 census tracts this ZIP code covers
Expected annual loss31 out of 100
Community resilience29.6 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.

Ice storm90.2Relatively High at its worst in this ZIP code
Hail81.2Relatively High at its worst in this ZIP code
Landslide78.4Relatively Low at its worst in this ZIP code
Lightning76.9Relatively High at its worst in this ZIP code
Cold wave71.6Relatively High at its worst in this ZIP code
Wildfire71Relatively Low at its worst in this ZIP code
Strong wind69Relatively Moderate at its worst in this ZIP code
Tornado68.6Relatively High at its worst in this ZIP code
Hurricane66.9Relatively Low at its worst in this ZIP code
Earthquake65.7Relatively Moderate at its worst in this ZIP code
River flooding54.1Relatively Moderate at its worst in this ZIP code
Drought43.2Relatively Low at its worst in this ZIP code
Winter weather31.8Relatively Low at its worst in this ZIP code
Heat wave26.2Relatively Low 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$66,806$74,664$78,538
Income per person$32,087$39,525$43,289
Poverty rate14.9%13.5%12.4%
Median home value$162,000$272,900$303,400
Median gross rent$875$1,306$1,348
Homeownership78.4%65.4%65%
Bachelor's degree or higher14.7%34.2%35%
Unemployment rate6.8%5.1%5.2%
Works from home5.5%14.2%13.5%
Born outside the US0.2%10.8%13.9%
Median age36.937.438.7
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 stationTOCCOA, GA US16.9 km away
Rain in a year59 in
Snow in a year1 in

Average high and low by month

January52.7°F / 33.1°F5.52 in rain, 0.5 in snow
February56.5°F / 35.5°F5.01 in rain, 0.4 in snow
March64.2°F / 41.4°F5.37 in rain
April72.9°F / 48.8°F4.64 in rain
May79.8°F / 57.6°F4.07 in rain
June86.2°F / 65.7°F5.05 in rain
July89.3°F / 69.1°F4.17 in rain
August88°F / 68.4°F5.7 in rain
September83.1°F / 62.9°F4.56 in rain
October73.7°F / 51.4°F4.81 in rain
November63.7°F / 40.9°F4.38 in rain
December55.4°F / 35.6°F5.76 in rain, 0.5 in snow
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 supermarket19% of this ZIP code's area
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%.

This ZIP code is served by 2 school districts, so the address decides which one, not the ZIP code.

Franklin County School District61.6% of this ZIP code's land area
Stephens County School District38.4% 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 vulnerability50more vulnerable than 50% of US census tracts
Socioeconomic status63more vulnerable than 63% of US census tracts
Household characteristics34more vulnerable than 34% of US census tracts
Racial and ethnic minority status25more vulnerable than 25% of US census tracts
Housing type and transport49more vulnerable than 49% of US census tracts
Walkability5.2 out of 20Least walkable
Nearby ZIP codes

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

30538 Eastanollee, GA7 km away
30553 Lavonia, GA7.6 km away
30577 Toccoa, GA14.6 km away
30521 Carnesville, GA15.2 km away
30516 Bowersville, GA15.8 km away
30520 Canon, GA16.4 km away
29643 Fair Play, SC18.5 km away
30598 Toccoa Falls, GA19.7 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.

Franklin County61.6% of this ZIP code's land area
Stephens County38.4% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area58.17 sq mi
Water area2.63 sq mi
Population density84 people per sq mi
Latitude, longitude34.4870, -83.1849

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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