Residential delivery area · Georgia
ZIP Code 31523: Brunswick, GA
ZIP code 31523 uses the postal name Brunswick, Georgia and lies entirely in Glynn County (Census 2020 ZIP-county file). About 15,000 people live there (Census Bureau, ACS 2020-2024), the 3rd most populous of Brunswick's 4 residential ZIP codes. Median household income is $88,988 (Census Bureau, ACS 2020-2024). Its land lies mostly outside any Census place; 2% is in small places.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Brunswick · 4 residential ZIPs
- County
- Glynn County
- Metro area
- Brunswick-St. Simons, GA
- House district
- GA-1 119th Congress
- State
- Georgia
- Time zone
- Eastern
- Land area
- 191.5 sq mi · 80 people per sq mi
- PO Box ZIPs
- 31521 also use the name Brunswick
Where is ZIP code 31523?
31523 centers on 31.213°, -81.617° and covers 191.5 square miles of land plus 17.9 of water. It borders 6 ZIP codes: 31520, 31525, 31565, 31566, 31527, 31543.
The map draws ZIP code areas only. For the streets inside 31523, 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).
How does 31523 compare with the rest of Brunswick?
| Measure | 31523 | In Brunswick | In Glynn County | In GA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 15,402 | 3rd of 4 | 4th of 9 | 248th of 751 |
| Median household income | $89k | 1st of 3 | 2nd of 5 | 110th of 476 |
| Median home value | $310k | 1st of 3 | 2nd of 4 | 156th of 474 |
Its median household income is higher than in 72% of U.S. residential ZIP codes, and it is denser than 50% 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 31523?
The 2020 Census counted 14,803 people in 31523; the ACS, which samples households over 2020-2024, estimates 15,402. Between the 2010 and 2020 censuses its population grew 11.9% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 15,402
- 2020 Census count
- 14,803+11.9% since 2010 (13,229)
- Households
- 5,666
- Median age
- 40.9
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 31523?
Of the 15,402 people the ACS estimates in 31523, 25.4% are under 18 and 18.0% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (74.6%), then Black (not Hispanic) (14.4%).
- Under 1825.4%
- 18 to 6456.6%
- 65 and older18.0%
- White, not Hispanic74.6%
- Black, not Hispanic14.4%
- Hispanic or Latino3.8%
- Other or two or more3.7%
- Asian, not Hispanic3.5%
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 31523 earn?
Median household income is $88,988 (ACS 2020-2024), the 2nd highest of the 5 ranked ZIP codes in Glynn County. It rose from $71,843 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $88,988±$9,768
- Income per person
- $43,343
- Below the poverty line
- 8.3%
- Unemployed (of the labor force)
- 2.8%
- Adults 25+ with a bachelor's degree
- 31.5%
- Adjusted gross income per tax return, 2022
- $78,3907,110 returns; wages 67% 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 31523?
FHFA's house price index for 31523, built from repeat sales and appraisals of the same homes, rose 95% from 2015 to 2025 and rose 52% from 2020 to 2025, and moved −0.7% in 2025.
- Median home value (owners' estimate)
- $310,400
- Median gross rent
- $988
- Homes owned by their occupants
- 85.3%
- Housing units
- 5,934
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 31523?
299 business establishments had a location in this ZIP code in 2023, 46 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction51
- Retail trade42
- Accommodation and food services37
- Other services (except public administration)27
- Professional, scientific, and technical services24
- Administrative and support and waste management and remediation services24
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 31523?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 31520 | Brunswick | 22,313 | $40k | 8.0 mi |
| 31525 | Brunswick | 28,926 | $70k | 9.2 mi |
| 31565 | Waverly | 2,409 | $62k | 9.9 mi |
| 31566 | Waynesville | 3,987 | $61k | 11.3 mi |
| 31527 | Jekyll Island | 769 | – | 15.2 mi |
| 31543 | Hortense | 4,935 | $50k | 16.9 mi |
| 31524 | Brunswick | 0 | – | 8.7 mi (near) |
| 31522 | Saint Simons Island | 17,780 | $109k | 16.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.