Gwinnett County, Georgia

Gwinnett County profile, demographic data, and geographic information.

Local Government & Public Administration

Authoritative general-purpose local government units serving this area U.S. Census Bureau GUS (2026) / GMAF

Government Unit	Unit Type	Jurisdiction Role	Contact / Address
COUNTY OF GWINNETT GUS Population: 1,003,869 (2024) ID: 161755	County	Official County Government	Contact: GLENN STEPHENS-COUNTY ADMINISTRATOR 75 LANGLEY DR, LAWRENCEVILLE GA 30046-6936
CITY OF PEACHTREE CORNERS GUS Population: 42,638 (2024) ID: 235964	Municipal	Municipal Government Within County	Contact: FINANCE DIRECTOR 147 TECHNOLOGY PKWY, PEACHTREE CORNERS GA 30092
CITY OF MULBERRY GUS Population: 41,000 (2024) ID: 252769	Municipal	Municipal Government Within County	Contact: CITY OF MULBERRY 2089 TERON TRACE, SUITE 120, MULBERRY GA 30019
CITY OF DULUTH GUS Population: 33,157 (2024) ID: 161888	Municipal	Municipal Government Within County	Contact: GIS MANAGER 3167 MAIN ST, DULUTH GA 30096-3273
CITY OF LAWRENCEVILLE GUS Population: 31,877 (2024) ID: 161889	Municipal	Municipal Government Within County	Contact: CITY MANAGER PO BOX 2200, LAWRENCEVILLE GA 30046-2200
CITY OF SUGAR HILL GUS Population: 28,598 (2024) ID: 212207	Municipal	Municipal Government Within County	Contact: CITY MANAGER 5039 WEST BROAD STREET, SUGAR HILL GA 30518
CITY OF SUWANEE GUS Population: 23,062 (2024) ID: 189850	Municipal	Municipal Government Within County	Contact: PLANNING DIVISION DIRECTOR 330 TOWN CENTER AVE, SUWANEE GA 30024-6763
CITY OF SNELLVILLE GUS Population: 22,336 (2024) ID: 207723	Municipal	Municipal Government Within County	Contact: CITY MANAGER 2342 OAK RD, SNELLVILLE GA 30078-2361
CITY OF NORCROSS GUS Population: 18,902 (2024) ID: 124472	Municipal	Municipal Government Within County	Contact: MAYOR 65 LAWRENCEVILLE ST, FRNT, NORCROSS GA 30071-2564
CITY OF BUFORD GUS Population: 18,642 (2024) ID: 161887	Municipal	Municipal Government Within County	Contact: FINANCE DIRECTOR 2300 BUFORD HWY, BUFORD GA 30518-6044
CITY OF LILBURN GUS Population: 16,210 (2024) ID: 124471	Municipal	Municipal Government Within County	Contact: CITY MANAGER 76 MAIN ST NW, LILBURN GA 30047
CITY OF DACULA GUS Population: 8,018 (2024) ID: 184819	Municipal	Municipal Government Within County	Contact: DIRECTOR OF PLANNING AND DEVELOPMENT PO BOX 400, DACULA GA 30019-0007
CITY OF GRAYSON GUS Population: 5,252 (2024) ID: 207724	Municipal	Municipal Government Within County	Contact: CITY ADMINISTRATOR PO BOX 208, GRAYSON GA 30017-0004
CITY OF BERKELEY LAKE GUS Population: 2,030 (2024) ID: 207722	Municipal	Municipal Government Within County	Contact: CITY ADMINISTRATOR 4040 S BERKELEY LAKE RD NW, BERKELEY LAKE GA 30096-3016
TOWN OF REST HAVEN GUS Population: 43 (2024) ID: 193162	Municipal	Municipal Government Within County	Contact: MAYOR 428 THUNDER RD, BUFORD GA 30518-1638