Residential delivery area · Georgia
ZIP Code 31520: Brunswick, GA
ZIP code 31520 is in Brunswick, Georgia, entirely in Glynn County (Census 2020 ZIP-county file). About 22,000 people live there (Census Bureau, ACS 2020-2024), the 2nd most populous of Brunswick's 4 residential ZIP codes. Median household income is $40,071 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Brunswick (53%) and Dock Junction (37%); 10% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Brunswick · 4 residential ZIPs
- County
- Glynn County
- Census places
- Brunswick (53%); Dock Junction (37%) census-designated place
- Neighborhoods
- Brunswick Villa, College Park, Demere Hammock, Glynnvilla, Gordon Oaks Homes, Magnolia Park and 3 more GeoNames
- Metro area
- Brunswick-St. Simons, GA
- House district
- GA-1 119th Congress
- State
- Georgia
- Time zone
- Eastern
- Land area
- 20.1 sq mi · 1,108 people per sq mi
- PO Box ZIPs
- 31521 also use the name Brunswick
Where is ZIP code 31520?
31520 centers on 31.178°, -81.488° and covers 20.1 square miles of land plus 1.9 of water. It borders 2 ZIP codes: 31523, 31525.
The map draws ZIP code areas only. For the streets inside 31520, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.
How does 31520 compare with the rest of Brunswick?
| Measure | 31520 | In Brunswick | In Glynn County | In GA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 22,313 | 2nd of 4 | 2nd of 9 | 195th of 751 |
| Median household income | $40k | 3rd of 3 | 5th of 5 | 455th of 476 |
| Median home value | $148k | 3rd of 3 | 4th of 4 | 391st of 474 |
Its median household income is higher than in 6% of U.S. residential ZIP codes, and it is denser than 79% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 31520?
The 2020 Census counted 22,726 people in 31520; the ACS, which samples households over 2020-2024, estimates 22,313. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 22,313
- 2020 Census count
- 22,726
- Households
- 8,968
- Median age
- 38.4
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 31520?
Of the 22,313 people the ACS estimates in 31520, 23.7% are under 18 and 18.7% are 65 or older. The largest group by race and Hispanic origin is Black (not Hispanic) (48.9%), then White (not Hispanic) (32.4%).
- Under 1823.7%
- 18 to 6457.6%
- 65 and older18.7%
- Black, not Hispanic48.9%
- White, not Hispanic32.4%
- Hispanic or Latino12.6%
- Other or two or more5.2%
- Asian, not Hispanic0.8%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 31520 earn?
Median household income is $40,071 (ACS 2020-2024), the 5th highest of the 5 ranked ZIP codes in Glynn County.
- Median household income
- $40,071
- Income per person
- $26,808
- Below the poverty line
- 29.8%
- Unemployed (of the labor force)
- 5.3%
- Adults 25+ with a bachelor's degree
- 17.3%
- Adjusted gross income per tax return, 2022
- $46,6068,340 returns; wages 64% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 31520?
FHFA's house price index for 31520, built from repeat sales and appraisals of the same homes, rose 150% from 2015 to 2025 and rose 72% from 2020 to 2025, and moved +4.5% in 2025.
- Median home value (owners' estimate)
- $147,500
- Median gross rent
- $983
- Homes owned by their occupants
- 45.5%
- Housing units
- 10,583
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 31520?
925 business establishments had a location in this ZIP code in 2023, 36 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade171
- Health care and social assistance146
- Other services (except public administration)103
- Professional, scientific, and technical services86
- Accommodation and food services85
- Construction73
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 31520?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 31523 | Brunswick | 15,402 | $89k | 8.0 mi |
| 31525 | Brunswick | 28,926 | $70k | 10.1 mi |
| 31524 | Brunswick | 0 | – | 4.4 mi (near) |
| 31527 | Jekyll Island | 769 | – | 8.3 mi (near) |
| 31522 | Saint Simons Island | 17,780 | $109k | 10.2 mi (near) |
| 31561 | Sea Island | 96 | $250k+ | 10.7 mi (near) |
| 31565 | Waverly | 2,409 | $62k | 11.8 mi (near) |
| 31305 | Darien | 5,108 | $43k | 14.6 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.