31312 ZIP Code — Guyton, GA

Effingham County, Georgia

ZIP code 31312 is located in Guyton, Georgia, within Effingham County. It covers approximately 174.82 square miles and serves a population of 24,235 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 912.

About ZIP code 31312

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 $229,900. Owner-occupancy is high at 85%, well above the national average.

Median household income is $92,114. The poverty rate of 6% is below the national average.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 32 minutes is near the national average.

Educational attainment is near the national average, with 27% of residents holding a bachelor's degree or higher.

Health indicators show elevated rates of smoking (20%) compared to national benchmarks.

Notable community characteristics include a notable veteran presence at 13% of civilians, above the national average of 7%.

Overall, ZIP code 31312 reflects a community defined by a strong veteran community and high homeownership.

24,235

population

174.82

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

31312 ZIP code map

Cities in ZIP code 31312

Below are the cities the US Postal Service accepts for ZIP code 31312. Using any city not on this list may result in mail delivery delays.

City	Status
Guyton	Acceptable
Guyton	Preferred

Nearby ZIP codes

31329 Springfield (7 mi) 31326 Rincon (11.2 mi) 30415 Brooklet (11.7 mi) 31308 Ellabell (12.8 mi) 31303 Clyo (12.8 mi) 31302 Bloomingdale (15.3 mi) 31407 Port Wentworth (16.3 mi) 30446 Newington (17.9 mi) 29943 Tillman (18.3 mi) 31321 Pembroke (18.7 mi) 31322 Pooler (19.8 mi) 31408 Savannah (19.8 mi)

Demographics updated 06/2026

Population
Total population	24,235
Population density	139 / sq mi
State FIPS	13
County FIPS	103

Geography
Land area	174.82 sq mi
Water area	0.62 sq mi
Latitude	32.3431
Longitude	-81.4009
Timezone	Eastern (ET)
Area code	912

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	27.9%	34.1%	41.5%
$50k – $100k	35.2%	36.2%	30.3%
$100k – $200k	31.7%	25.0%	21.2%
Over $200k	5.1%	4.7%	7.1%

Demographics & statistics

24,235

Population

139

People per sq mi

34.9

Median age

$92,114

Median household income

$34,025

Per capita income

$229,900

Median home value

$1,343

Median monthly rent

84.9%

Home ownership

6.1%

Poverty rate

5.6%

Unemployment

7,062

Housing units

26.5%

Bachelor's or higher

Age distribution

Male Female

842

Under 5

937

955

5–9

1,064

1,109

10–14

1,236

973

15–19

1,083

550

20–24

613

1,333

25–34

1,485

1,809

35–44

2,015

1,461

45–54

1,626

759

55–59

845

634

60–64

707

774

65–74

862

227

75–84

252

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	7,476	30.8%
18 and over	16,759	69.2%
65 and over	2,199	9.1%
Median age	34.9 years

Race & ethnicity

White 72.9%

Black or African American 8.7%

Two or more races 8.5%

Hispanic or Latino 6.3%

Other race 2.7%

Asian 0.5%

American Indian / Alaska Native 0.3%

Native Hawaiian / Pacific Islander 0.2%

Group	Count	%
White	18,854	72.9%
Black or African American	2,240	8.7%
Two or more races	2,207	8.5%
Hispanic or Latino	1,633	6.3%
Other race	694	2.7%
Asian	119	0.5%
American Indian / Alaska Native	66	0.3%
Native Hawaiian / Pacific Islander	55	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	27.9%	34.1%	41.5%
$50k – $100k	35.2%	36.2%	30.3%
$100k – $200k	31.7%	25.0%	21.2%
Over $200k	5.1%	4.7%	7.1%

Under $10k 2.4%

$10k–$15k 3.5%

$15k–$25k 5.8%

$25k–$35k 4.0%

$35k–$50k 5.4%

$50k–$75k 14.3%

$75k–$100k 20.3%

$100k–$150k 23.3%

$150k–$200k 11.9%

$200k+ 9.2%

Range	% of households
Under $10k	2.4%
$10k–$15k	3.5%
$15k–$25k	5.8%
$25k–$35k	4.0%
$35k–$50k	5.4%
$50k–$75k	14.3%
$75k–$100k	20.3%
$100k–$150k	23.3%
$150k–$200k	11.9%
$200k+	9.2%
Median income	$92,114

Housing

Home values

Under $50k 4.3%

$50k–$100k 8.8%

$100k–$150k 8.2%

$150k–$200k 20.2%

$200k–$300k 26.3%

$300k–$500k 27.4%

$500k–$1M 4.4%

$1M+ 0.3%

Housing overview

Metric	Value
Median home value	$229,900
Median rent / month	$1,343
Owner occupied	84.9%
Renter occupied	15.1%
Vacant	7.7%
Single-family detached	76.9%
Large apartment buildings	0.0%
Mobile homes	22.6%
Median rooms	6.7
Avg household size (owned)	3.21

Year built

Era	%
2020 or later	1.4%
2010–2019	28.3%
2000–2009	30.8%
1990–1999	15.6%
1980–1989	7.2%
1970–1979	10.2%
1960–1969	2.6%
1950–1959	1.3%
1940–1949	0.5%
1939 or earlier	2.2%

Bedrooms

Size	% of units
No bedroom (studio)	0.2%
1 bedroom	0.8%
2 bedrooms	8.0%
3 bedrooms	51.7%
4 bedrooms	28.4%
5+ bedrooms	10.9%

Vehicles per household

Vehicles	% of households
No vehicle	0.9%
1 vehicle	13.9%
2 vehicles	52.2%
3 or more	32.9%

Heating fuel

Fuel type	%
Utility gas	3.4%
Electricity	94.7%
Propane / LP gas	1.2%
Wood	0.6%
No fuel used	0.1%

Households & families

Household type	Count	%
Married-couple family	5,146	68.0%
Cohabiting couple	348	4.6%
Male householder, no spouse	741	9.8%
Female householder, no spouse	1,336	17.6%
Households with children under 18	3,184	42.1%
Households with seniors (65+)	1,474	19.5%
Average household size	3.20

Marital status

Status	Male	Female
Never married	27.0%	21.7%
Married	64.0%	56.5%
Separated	0.6%	1.1%
Widowed	1.1%	4.1%
Divorced	7.3%	16.7%

Education

Less than 9th grade 1.7%

Some HS, no diploma 8.6%

HS graduate 29.8%

Some college, no degree 23.7%

Associate's degree 9.8%

Bachelor's degree 19.2%

Graduate / professional 7.3%

Metric	%
HS diploma or higher	89.7%
Bachelor's or higher	26.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	474	6.6%
Kindergarten	421	5.9%
Elementary school	3,578	50.0%
High school	1,664	23.3%
College / grad school	1,017	14.2%

Employment

Industry of employment

Education & healthcare 20.6%

Manufacturing 17.9%

Retail trade 13.6%

Professional & management 10.1%

Transportation & utilities 9.7%

Construction 6.4%

Public administration 6.4%

Arts, food & hospitality 6.3%

Other services 3.7%

Finance & real estate 2.7%

Wholesale trade 1.6%

Information 0.6%

Agriculture & mining 0.5%

Occupation

Category	%
Management, business & arts	37.3%
Service	14.0%
Sales & office	20.9%
Natural resources & construction	10.6%
Production & transportation	17.2%

Employment type

Type	%
Private sector	80.0%
Government	16.0%
Self-employed	4.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	86.4%
Carpool	8.5%
Public transit	0.1%
Walk	0.9%
Work from home	3.3%
Other means	0.9%
Avg commute (minutes)	31.6

Poverty

All people 6.1%

Under 18 years 4.8%

18 and over 6.6%

Married-couple families 4.1%

Female-led households 5.7%

Income support

Source	% of households
Social Security	24.3%
Retirement income	21.9%
Supplemental Security	5.0%
Cash public assistance	0.2%
Food stamps / SNAP	7.5%

Health indicators

Condition	%
Obesity	36.8%
High blood pressure	31.2%
High cholesterol	31.1%
Diabetes	9.5%
Heart disease	5.5%
Stroke	2.6%
Asthma	9.7%
Arthritis	23.3%
Kidney disease	2.4%
Pulmonary disease	6.4%
Cancer	5.4%

Behavior / access	%
Smoking	20.1%
Binge drinking	18.0%
No physical activity	25.1%
Less than 7 hrs sleep	35.7%
Depression	22.0%
Fair or poor health	14.1%
Poor mental health	16.5%
Poor physical health	10.2%
No health insurance	19.0%
Visited doctor (checkup)	74.1%
Visited dentist	59.8%
Cholesterol screening	88.9%
Teeth loss	15.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	2,228	13.4%

Disability	%
Any disability	9.8%
Under 18	1.9%
18–64 years	9.6%
65 and over	37.7%

Health insurance coverage

Type	%
Private insurance	76.1%
Public insurance	24.5%
No insurance	10.1%
Uninsured under 19	3.1%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	22,456	92.7%
Spanish	211	0.9%
Other Indo-European	166	0.7%
Asian & Pacific Islander	0	0.0%
Other languages	45	0.2%

Place of birth & citizenship

Origin	Count	%
Native born (US)	23,857	98.4%
Born in same state	23,055	95.1%
Born in different state	13,776	56.8%
Foreign born	802	3.3%
Naturalized citizen	378	1.6%
Not a US citizen	241	63.8%

Ancestry

Ancestry	Count	%
Arab	3,158	13%
French	3,117	12.9%
Italian	2,662	11%
English	233	1%

Ancestry	Count	%
Polish	89	0.4%
German	63	0.3%
Irish	26	0.1%
Norwegian	10	0%

Technology access

Metric	% of households
Computer access	31.2%
Internet access	97.5%

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

Frequently asked questions about ZIP code 31312

What city is ZIP code 31312 in?

ZIP code 31312 is primarily assigned to Guyton, Georgia.

What county is ZIP code 31312 in?

ZIP code 31312 falls within Effingham County, Georgia.

Is ZIP code 31312 family-oriented?

31% of residents in ZIP code 31312 are under 18, reflecting a younger, family-oriented community.

Is ZIP code 31312 mostly owner-occupied?

85% of occupied units in ZIP code 31312 are owner-occupied, well above the national average.

Does ZIP code 31312 have a large veteran population?

13% of civilians in ZIP code 31312 are veterans, above the national average of ~7%.

What is the population of ZIP code 31312?

ZIP code 31312 has an estimated population of 24,235 residents, with a density of 139 people per square mile.

What timezone is ZIP code 31312 in?

ZIP code 31312 observes the EST timezone.