PlainZIP

Tybee Island, GA · standard

ZIP Code 31328

Chatham County, Georgia — Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

3,306
228/sq mi
$109,631
Median income
$619,800
Median home value
46.9%
Bachelor's or higher

The verdict

Tybee Island pairs an upper-quartile household income with top-decile home values, in a low-density, homeowner-dominated area.

Top 14%
household income, US ZIPs
Top 8%
home value, US ZIPs
228
people per sq mi
89%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 31328 against every reporting US ZIP.

ZIP code 31328 is classified by USPS as a standard delivery area and covers roughly 14.5 square miles in Tybee Island, Chatham County, Georgia. The area is home to 3,306 residents, producing a population density of 228 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 31328 against Georgia and the nation.

On the economic side, the median household income for ZIP 31328 sits at $109,631 (56% above the Georgia average), while per-capita income is $55,031. The poverty rate stands at 7.3% and the unemployment rate at 2.5%. On housing, the median home value is $619,800 (157% above the state average) with median rent at $1,665 per month, and 88.8% of occupied units are owner-occupied, a direct signal of whether 31328 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 46.9% of adults hold a bachelor's degree or higher, the median age is 61.1, and the average commute is —. We also surface 2 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Chatham County, so you can benchmark 31328 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →

Top industries in ZIP 31328

Top 5 sectors by establishment count

Which industries have the most business establishments in ZIP 31328.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 31328, Tybee Island, GA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.

Quick Facts

3,306

Population

14.5

Area (sq mi)

228

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 31328?

61.1

Median Age

49.2%

Male

50.8%

Female

4.4%

Foreign-Born

White 92.2%
African American 3.0%
Asian 0.0%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 2.2%
Hispanic or Latino 0.3%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$109,631

Median Household Income

+56% vs state

$55,031

Per Capita Income

7.3%

Poverty Rate

2.5%

Unemployment Rate

How ZIP 31328 ranks nationally

Household income vs. every US ZIP code

Median household income — the full national distribution, with this ZIP marked

$109,631 Top 14% higher than 86% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). This entry sits in this band. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau — ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 76.3%
Bachelor's Degree or Higher 46.9%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

3,378

Total Housing Units

1,575

Occupied Units

1,803

Vacant Units

2.06

Avg Household Size

Occupancy Type

Owner 88.8%
Renter 11.2%

$619,800

Median Home Value

+157% vs state

$1,665

Median Rent

1984

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

-3.7%

YoY Change (2024)

306

HPI Index (2000 = 100)

+206%

Total Change Since 2000

Home values in ZIP 31328 have decreased 3.7% over the past year (2024). Since 2000, this ZIP has seen +206% cumulative appreciation.

Year Annual Change HPI Index
2020 +3.8% 210
2021 +8.8% 229
2022 +23.3% 282
2023 +12.7% 318
2024 -3.7% 306

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 167 business establishments in ZIP 31328, employing approximately 1,305 people with a combined annual payroll of $41,391,000.

167

Businesses

1,305

Employees

$41.4M

Annual Payroll

11

Industry Sectors

Industry Establishments % of Total
Accommodation and food services 51 30.5%
Real estate and rental and leasing 25 15.0%
Retail trade 19 11.4%
Professional, scientific, and technical services 14 8.4%
Construction 11 6.6%
Health care and social assistance 10 6.0%
Other services (except public administration) 8 4.8%
Transportation and warehousing 6 3.6%
Administrative and support and waste management and remediation services 6 3.6%
Arts, entertainment, and recreation 5 3.0%
Information 4 2.4%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 31328 vs 29915 →

ZIP 31328 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 31328 ranks #2 by population — useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 31328 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 31328 ranks #2 of 3 neighboring ZIPs — local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
29915 Daufuskie Island, SC 416 7.4 mi
31410 Savannah, GA 23,654 7.4 mi

More ZIP Codes in Chatham County

31419 standard
Savannah, GA
Pop: 50,954
31405 standard
Savannah, GA
Pop: 37,207
31406 standard
Savannah, GA
Pop: 33,965
31404 standard
Savannah, GA
Pop: 31,024
31410 standard
Savannah, GA
Pop: 23,654
31401 standard
Savannah, GA
Pop: 21,696

Related Areas

Chatham County Tybee Island, GA Georgia

Frequently Asked Questions

What county is ZIP code 31328 in? ▼
ZIP code 31328 (Tybee Island) is located in Chatham County, Georgia. Chatham County contains multiple ZIP codes, see the full list at /counties/chatham-ga.
What is the population of ZIP code 31328? ▼
ZIP code 31328 in Tybee Island, GA has a population of 3,306 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 31328? ▼
The median household income in ZIP 31328 is $109,631, which is 44% above the national average of $76,288.
What is the average home value in ZIP 31328? ▼
The median home value in ZIP 31328 is $619,800, which is 123% above the national average of $278,155.
What is the demographic makeup of ZIP 31328? ▼
The largest racial group in ZIP 31328 is White at 92.2%. Hispanic or Latino residents make up 0.3% of the population.
How many businesses are in ZIP code 31328? ▼
ZIP code 31328 has 167 business establishments employing approximately 1,305 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 31328? ▼
The top industries by establishment count in ZIP 31328 are: Accommodation and food services (51), Real estate and rental and leasing (25), Retail trade (19). There are 11 industry sectors represented in total.
How have home values changed in ZIP code 31328? ▼
According to the FHFA House Price Index, home values in ZIP 31328 decreased by 3.7% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 206%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 31328? ▼
In ZIP code 31328, 76.3% of residents aged 25+ have a high school diploma or higher, and 46.9% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 31328? ▼
In ZIP code 31328, approximately 88.8% of occupied housing units are owner-occupied and 11.2% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 31328? ▼
The poverty rate in ZIP code 31328 is 7.3% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

ZIP Code Research Guides

Reading Census Demographics
How to interpret population, income, and education data from the Census Bureau.
Understanding ZIP Code Data
What ZIP codes are, how ZCTAs differ, and what the data reveals.
Best ZIP Codes for Families
Key factors to evaluate when choosing a family-friendly neighborhood.
ZIP Codes for Relocation
Data-driven tips for evaluating ZIP codes before a move.

Official Data Resources for Tybee Island, GA

Verify and explore additional data for this area using these official government sources.

U.S. Census Bureau
Official demographic, economic, and housing data from the American Community Survey.
HUD Fair Market Rents
Department of Housing and Urban Development rental cost estimates by metropolitan area.
FBI Uniform Crime Reports
Official crime statistics compiled from law enforcement agencies nationwide.
FHFA House Price Index
Federal Housing Finance Agency home value trends based on repeat sales and appraisals.

Read our methodology to see how this data is sourced, computed, and verified.