30257 ZIP Code — Milner, GA

Lamar County, Georgia

ZIP code 30257 is located in Milner, Georgia, within Lamar County. It covers approximately 42.09 square miles and serves a population of 3,904 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 678.

About ZIP code 30257

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $198,700. Owner-occupancy is high at 83%, well above the national average.

Median household income is $73,721. The poverty rate of 4% is below the national average. 38% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with manufacturing as the leading industry. An above-average commute of 41 minutes suggests many residents work outside the immediate area.

College attainment at 18% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 30257 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

3,904

population

42.09

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

30257 ZIP code map

Cities in ZIP code 30257

Below are the cities the US Postal Service accepts for ZIP code 30257. Using any city not on this list may result in mail delivery delays.

City	Status
Milner	Preferred

Nearby ZIP codes

30204 Barnesville (5.5 mi) 30224 Griffin (7.7 mi) 30295 Zebulon (9.3 mi) 30285 The Rock (10.6 mi) 30256 Meansville (12.1 mi) 30223 Griffin (12.4 mi) 30292 Williamson (14.3 mi) 30248 Locust Grove (14.5 mi) 30234 Jenkinsburg (15.7 mi) 31029 Forsyth (15.7 mi) 30233 Jackson (16.3 mi) 31097 Yatesville (16.3 mi)

Demographics updated 05/2026

Population
Total population	3,904
Population density	93 / sq mi
State FIPS	13
County FIPS	171

Geography
Land area	42.09 sq mi
Water area	0.71 sq mi
Latitude	33.1338
Longitude	-84.1634
Timezone	Eastern (ET)
Area code	678

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	46.4%	50.9%	41.5%
$50k – $100k	32.1%	31.4%	30.3%
$100k – $200k	15.6%	15.2%	21.2%
Over $200k	5.8%	2.6%	7.1%

Demographics & statistics

3,904

Population

People per sq mi

38.9

Median age

$73,721

Median household income

$33,812

Per capita income

$198,700

Median home value

$890

Median monthly rent

83.4%

Home ownership

3.5%

Poverty rate

1.4%

Unemployment

1,377

Housing units

17.5%

Bachelor's or higher

Age distribution

Male Female

169

Under 5

178

155

5–9

162

153

10–14

161

15–19

20–24

203

25–34

213

311

35–44

328

286

45–54

301

113

55–59

119

60–64

194

65–74

203

134

75–84

141

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,111	28.5%
18 and over	2,793	71.5%
65 and over	676	17.3%
Median age	38.9 years

Race & ethnicity

White 85.8%

Black or African American 7.5%

Two or more races 5.2%

Hispanic or Latino 1.1%

Other race 0.4%

Group	Count	%
White	3,386	85.8%
Black or African American	296	7.5%
Two or more races	207	5.2%
Hispanic or Latino	43	1.1%
Other race	15	0.4%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	46.4%	50.9%	41.5%
$50k – $100k	32.1%	31.4%	30.3%
$100k – $200k	15.6%	15.2%	21.2%
Over $200k	5.8%	2.6%	7.1%

Under $10k 0.6%

$10k–$15k 1.5%

$15k–$25k 8.0%

$25k–$35k 7.8%

$35k–$50k 14.0%

$50k–$75k 19.7%

$75k–$100k 12.0%

$100k–$150k 21.4%

$150k–$200k 8.7%

$200k+ 6.4%

Range	% of households
Under $10k	0.6%
$10k–$15k	1.5%
$15k–$25k	8.0%
$25k–$35k	7.8%
$35k–$50k	14.0%
$50k–$75k	19.7%
$75k–$100k	12.0%
$100k–$150k	21.4%
$150k–$200k	8.7%
$200k+	6.4%
Median income	$73,721

Housing

Home values

Under $50k 4.8%

$50k–$100k 11.2%

$100k–$150k 8.7%

$150k–$200k 25.7%

$200k–$300k 28.1%

$300k–$500k 17.6%

$500k–$1M 2.8%

$1M+ 1.1%

Housing overview

Metric	Value
Median home value	$198,700
Median rent / month	$890
Owner occupied	83.4%
Renter occupied	16.6%
Vacant	12.0%
Single-family detached	79.2%
Large apartment buildings	0.0%
Mobile homes	19.3%
Median rooms	5.9
Avg household size (owned)	2.93

Year built

Era	%
2020 or later	0.9%
2010–2019	11.9%
2000–2009	33.6%
1990–1999	13.8%
1980–1989	15.7%
1970–1979	12.7%
1960–1969	3.0%
1950–1959	0.4%
1940–1949	0.7%
1939 or earlier	7.3%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	5.3%
2 bedrooms	15.2%
3 bedrooms	57.7%
4 bedrooms	14.3%
5+ bedrooms	7.6%

Vehicles per household

Vehicles	% of households
No vehicle	1.5%
1 vehicle	31.5%
2 vehicles	38.0%
3 or more	29.0%

Heating fuel

Fuel type	%
Utility gas	4.1%
Electricity	77.6%
Propane / LP gas	16.5%
Wood	1.8%
No fuel used	0.1%

Households & families

Household type	Count	%
Married-couple family	791	55.8%
Cohabiting couple	64	4.5%
Male householder, no spouse	249	17.6%
Female householder, no spouse	314	22.1%
Households with children under 18	426	30.0%
Households with seniors (65+)	518	36.5%
Average household size	2.75

Marital status

Status	Male	Female
Never married	18.0%	22.4%
Married	60.2%	55.0%
Separated	0.0%	3.8%
Widowed	2.5%	8.9%
Divorced	19.3%	10.0%

Education

Less than 9th grade 0.3%

Some HS, no diploma 5.1%

HS graduate 42.2%

Some college, no degree 24.8%

Associate's degree 10.1%

Bachelor's degree 13.3%

Graduate / professional 4.1%

Metric	%
HS diploma or higher	94.5%
Bachelor's or higher	17.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	177	18.1%
Kindergarten	59	6.0%
Elementary school	493	50.4%
High school	169	17.3%
College / grad school	80	8.2%

Employment

Industry of employment

Manufacturing 25.3%

Education & healthcare 20.2%

Public administration 10.7%

Construction 9.8%

Transportation & utilities 8.1%

Professional & management 4.7%

Arts, food & hospitality 4.7%

Other services 4.3%

Retail trade 3.8%

Information 3.0%

Wholesale trade 2.5%

Finance & real estate 1.9%

Agriculture & mining 0.9%

Occupation

Category	%
Management, business & arts	40.2%
Service	13.7%
Sales & office	16.2%
Natural resources & construction	19.1%
Production & transportation	10.8%

Employment type

Type	%
Private sector	74.1%
Government	22.1%
Self-employed	3.8%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	86.4%
Carpool	9.2%
Public transit	0.0%
Walk	0.0%
Work from home	4.4%
Other means	0.0%
Avg commute (minutes)	41.3

Poverty

All people 3.5%

Under 18 years 4.7%

18 and over 3.1%

Married-couple families 2.0%

Female-led households 3.2%

Income support

Source	% of households
Social Security	38.4%
Retirement income	28.2%
Supplemental Security	10.9%
Cash public assistance	1.2%
Food stamps / SNAP	5.2%

Health indicators

Condition	%
Obesity	33.9%
High blood pressure	36.8%
High cholesterol	35.8%
Diabetes	11.5%
Heart disease	7.0%
Stroke	3.2%
Asthma	9.6%
Arthritis	27.0%
Kidney disease	3.0%
Pulmonary disease	7.6%
Cancer	6.6%

Behavior / access	%
Smoking	19.8%
Binge drinking	15.7%
No physical activity	25.7%
Less than 7 hrs sleep	35.7%
Depression	21.4%
Fair or poor health	15.5%
Poor mental health	15.8%
Poor physical health	11.1%
No health insurance	18.7%
Visited doctor (checkup)	75.2%
Visited dentist	58.8%
Cholesterol screening	90.0%
Teeth loss	16.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	284	10.2%

Disability	%
Any disability	14.2%
Under 18	0.6%
18–64 years	11.6%
65 and over	44.4%

Health insurance coverage

Type	%
Private insurance	83.1%
Public insurance	28.1%
No insurance	5.1%
Uninsured under 19	6.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	3,557	91.1%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	3,870	99.1%
Born in same state	3,853	98.7%
Born in different state	3,058	78.3%
Foreign born	17	0.4%
Naturalized citizen	34	0.9%
Not a US citizen	4	11.8%

Ancestry

Ancestry	Count	%
French	594	15.2%
Arab	478	12.2%
Italian	308	7.9%
Polish	19	0.5%

Ancestry	Count	%
German	18	0.5%
Irish	4	0.1%
Dutch	4	0.1%

Technology access

Metric	% of households
Computer access	36.3%
Internet access	98.7%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 30257

What city is ZIP code 30257 in?

ZIP code 30257 is primarily assigned to Milner, Georgia.

What county is ZIP code 30257 in?

ZIP code 30257 falls within Lamar County, Georgia.

Is ZIP code 30257 mostly owner-occupied?

83% of occupied units in ZIP code 30257 are owner-occupied, well above the national average.

Does ZIP code 30257 have a large retiree population?

38% of households in ZIP code 30257 receive Social Security income, suggesting a significant retiree or disability population.

Does ZIP code 30257 have a large veteran population?

10% of civilians in ZIP code 30257 are veterans, above the national average of ~7%.

What is the population of ZIP code 30257?

ZIP code 30257 has an estimated population of 3,904 residents, with a density of 93 people per square mile.

What timezone is ZIP code 30257 in?

ZIP code 30257 observes the EST timezone.