31522 ZIP Code — Saint Simons Island, GA

Glynn County, Georgia

ZIP code 31522 is located in Saint Simons Island, Georgia, within Glynn County. It covers approximately 53.38 square miles and serves a population of 17,453 residents. This is a po box ZIP code in the Eastern (ET) timezone, served by area code 912.

About ZIP code 31522

The housing stock consists of a mix of housing types. Most homes were built in the 1980s, giving the area an established character. Median home value is $456,400. Owner-occupancy is high at 84%, well above the national average.

The gap between median ($99,738) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 5% is below the national average. 52% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with professional and management as the leading industry. The average commute of 17 minutes is near the national average.

Educational attainment is high — 55% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 31522 reflects a community defined by a highly educated population, high homeownership, and a significant Social Security-dependent population.

17,453

population

53.38

sq mi land

PO Box

ZIP type

Eastern (ET)

timezone

31522 ZIP code map

Cities in ZIP code 31522

Below are the cities the US Postal Service accepts for ZIP code 31522. Using any city not on this list may result in mail delivery delays.

City	Status
Saint Simons Island	Acceptable
Saint Simons Island	Acceptable
Saint Simons Island	Preferred

Nearby ZIP codes

31520 Brunswick (9.6 mi) 31524 Brunswick (9.7 mi) 31527 Jekyll Island (11.6 mi) 31525 Brunswick (11.9 mi) 31305 Darien (12.2 mi) 31523 Brunswick (15.4 mi) 31565 Waverly (19.8 mi)

Demographics updated 05/2026

Population
Total population	17,453
Population density	327 / sq mi
State FIPS	13
County FIPS	127

Geography
Land area	53.38 sq mi
Water area	16.55 sq mi
Latitude	31.2238
Longitude	-81.3514
Timezone	Eastern (ET)
Area code	912

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	22.2%	43.9%	41.5%
$50k – $100k	31.0%	29.5%	30.3%
$100k – $200k	32.7%	21.1%	21.2%
Over $200k	14.1%	5.5%	7.1%

Demographics & statistics

17,453

Population

327

People per sq mi

58.4

Median age

$99,738

Median household income

$67,918

Per capita income

$456,400

Median home value

$1,509

Median monthly rent

83.6%

Home ownership

4.9%

Poverty rate

2.5%

Unemployment

10,737

Housing units

54.6%

Bachelor's or higher

Age distribution

Male Female

326

Under 5

373

261

5–9

298

231

10–14

264

306

15–19

349

306

20–24

349

636

25–34

726

627

35–44

715

947

45–54

1,082

603

55–59

688

725

60–64

827

1,957

65–74

2,234

902

75–84

1,030

323

85+

368

← Male

Female →

Age summary

Group	Count	%
Under 18	2,252	12.9%
18 and over	15,201	87.1%
65 and over	6,814	39.0%
Median age	58.4 years

Race & ethnicity

White 92.5%

Two or more races 2.2%

Hispanic or Latino 1.6%

Black or African American 1.5%

Other race 1%

American Indian / Alaska Native 0.7%

Asian 0.5%

Group	Count	%
White	16,409	92.5%
Two or more races	384	2.2%
Hispanic or Latino	278	1.6%
Black or African American	263	1.5%
Other race	181	1%
American Indian / Alaska Native	123	0.7%
Asian	87	0.5%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	22.2%	43.9%	41.5%
$50k – $100k	31.0%	29.5%	30.3%
$100k – $200k	32.7%	21.1%	21.2%
Over $200k	14.1%	5.5%	7.1%

Under $10k 2.5%

$10k–$15k 2.3%

$15k–$25k 2.0%

$25k–$35k 5.4%

$35k–$50k 6.3%

$50k–$75k 18.0%

$75k–$100k 13.8%

$100k–$150k 19.6%

$150k–$200k 12.6%

$200k+ 17.6%

Range	% of households
Under $10k	2.5%
$10k–$15k	2.3%
$15k–$25k	2.0%
$25k–$35k	5.4%
$35k–$50k	6.3%
$50k–$75k	18.0%
$75k–$100k	13.8%
$100k–$150k	19.6%
$150k–$200k	12.6%
$200k+	17.6%
Median income	$99,738

Housing

Home values

Under $50k 0.6%

$50k–$100k 2.0%

$100k–$150k 0.7%

$150k–$200k 2.2%

$200k–$300k 16.5%

$300k–$500k 36.6%

$500k–$1M 31.0%

$1M+ 10.4%

Housing overview

Metric	Value
Median home value	$456,400
Median rent / month	$1,509
Owner occupied	83.6%
Renter occupied	16.4%
Vacant	34.1%
Single-family detached	62.7%
Large apartment buildings	8.7%
Mobile homes	1.8%
Median rooms	6.0
Avg household size (owned)	2.22

Year built

Era	%
2020 or later	0.2%
2010–2019	10.4%
2000–2009	19.4%
1990–1999	18.6%
1980–1989	21.5%
1970–1979	14.5%
1960–1969	5.6%
1950–1959	4.4%
1940–1949	3.8%
1939 or earlier	1.7%

Bedrooms

Size	% of units
No bedroom (studio)	2.7%
1 bedroom	5.6%
2 bedrooms	23.6%
3 bedrooms	42.3%
4 bedrooms	20.0%
5+ bedrooms	5.8%

Vehicles per household

Vehicles	% of households
No vehicle	2.7%
1 vehicle	31.4%
2 vehicles	45.9%
3 or more	20.0%

Heating fuel

Fuel type	%
Utility gas	11.4%
Electricity	86.8%
Propane / LP gas	1.0%
Wood	0.6%
No fuel used	0.3%

Households & families

Household type	Count	%
Married-couple family	4,764	60.1%
Cohabiting couple	259	3.3%
Male householder, no spouse	980	12.4%
Female householder, no spouse	1,925	24.3%
Households with children under 18	1,257	15.9%
Households with seniors (65+)	4,315	54.4%
Average household size	2.17

Marital status

Status	Male	Female
Never married	19.2%	16.2%
Married	67.2%	58.2%
Separated	0.2%	1.1%
Widowed	4.3%	13.0%
Divorced	9.1%	11.7%

Education

Less than 9th grade 1.4%

Some HS, no diploma 2.8%

HS graduate 15.1%

Some college, no degree 16.9%

Associate's degree 9.2%

Bachelor's degree 32.8%

Graduate / professional 21.8%

Metric	%
HS diploma or higher	95.8%
Bachelor's or higher	54.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	265	10.5%
Kindergarten	46	1.8%
Elementary school	876	34.6%
High school	804	31.7%
College / grad school	543	21.4%

Employment

Industry of employment

Professional & management 18.0%

Education & healthcare 17.5%

Arts, food & hospitality 15.1%

Retail trade 11.4%

Manufacturing 8.6%

Finance & real estate 6.8%

Construction 6.2%

Public administration 6.1%

Other services 4.1%

Transportation & utilities 2.9%

Wholesale trade 1.2%

Information 1.2%

Agriculture & mining 0.8%

Occupation

Category	%
Management, business & arts	48.4%
Service	14.4%
Sales & office	25.0%
Natural resources & construction	7.2%
Production & transportation	5.0%

Employment type

Type	%
Private sector	77.3%
Government	11.9%
Self-employed	10.3%
Unpaid family workers	0.5%

Commute

Method	%
Drive alone	75.8%
Carpool	4.7%
Public transit	0.0%
Walk	1.4%
Work from home	15.2%
Other means	2.9%
Avg commute (minutes)	17.4

Poverty

All people 4.9%

Under 18 years 6.3%

18 and over 4.7%

Married-couple families 3.1%

Female-led households 15.1%

Income support

Source	% of households
Social Security	52.2%
Retirement income	44.1%
Supplemental Security	2.9%
Cash public assistance	0.6%
Food stamps / SNAP	1.9%

Health indicators

Condition	%
Obesity	30.3%
High blood pressure	35.4%
High cholesterol	39.4%
Diabetes	10.7%
Heart disease	7.1%
Stroke	2.8%
Asthma	8.2%
Arthritis	28.6%
Kidney disease	3.1%
Pulmonary disease	5.7%
Cancer	9.1%

Behavior / access	%
Smoking	11.0%
Binge drinking	14.0%
No physical activity	19.3%
Less than 7 hrs sleep	27.5%
Depression	17.3%
Fair or poor health	10.5%
Poor mental health	11.6%
Poor physical health	8.6%
No health insurance	11.3%
Visited doctor (checkup)	79.0%
Visited dentist	71.9%
Cholesterol screening	94.8%
Teeth loss	8.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,435	9.4%

Disability	%
Any disability	11.1%
Under 18	1.4%
18–64 years	7.7%
65 and over	18.7%

Health insurance coverage

Type	%
Private insurance	75.0%
Public insurance	44.5%
No insurance	4.2%
Uninsured under 19	1.9%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	16,754	96.0%
Spanish	140	0.8%
Other Indo-European	72	0.4%
Asian & Pacific Islander	68	0.4%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	16,817	96.4%
Born in same state	16,695	95.7%
Born in different state	7,673	44.0%
Foreign born	122	0.7%
Naturalized citizen	636	3.6%
Not a US citizen	444	69.8%

Ancestry

Ancestry	Count	%
French	3,757	21.5%
Italian	2,175	12.5%
Arab	1,512	8.7%
English	129	0.7%
Polish	129	0.7%

Ancestry	Count	%
German	103	0.6%
Norwegian	78	0.4%
Irish	71	0.4%
Dutch	65	0.4%

Technology access

Metric	% of households
Computer access	45.4%
Internet access	97.4%

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

Frequently asked questions about ZIP code 31522

What city is ZIP code 31522 in?

ZIP code 31522 is primarily assigned to Saint Simons Island, Georgia.

What county is ZIP code 31522 in?

ZIP code 31522 falls within Glynn County, Georgia.

Does ZIP code 31522 have an older population?

39% of residents in ZIP code 31522 are 65 or older, above the national average of ~17%.

Does ZIP code 31522 have a large retiree population?

52% of households in ZIP code 31522 receive Social Security income, suggesting a significant retiree or disability population.

How educated is the population of ZIP code 31522?

55% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

Is ZIP code 31522 mostly owner-occupied?

84% of occupied units in ZIP code 31522 are owner-occupied, well above the national average.

What timezone is ZIP code 31522 in?

ZIP code 31522 observes the EST timezone.