Residential delivery area · Georgia
ZIP Code 30078: Snellville, GA
ZIP code 30078 is in Snellville, Georgia, entirely in Gwinnett County (Census 2020 ZIP-county file). About 42,000 people live there (Census Bureau, ACS 2020-2024), the less populous of Snellville's 2 residential ZIP codes. Median household income is $98,257 (Census Bureau, ACS 2020-2024). By Census place, 53% of its land lies in Snellville; 47% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Snellville · 2 residential ZIPs
- County
- Gwinnett County
- Census places
- Snellville
- Neighborhoods
- Abington Park, Hickory Hills, Williams Place GeoNames
- Metro area
- Atlanta-Sandy Springs-Roswell, GA
- House district
- GA-13 119th Congress
- State
- Georgia
- Time zone
- Eastern
- Land area
- 17.3 sq mi · 2,403 people per sq mi
Where is ZIP code 30078?
30078 centers on 33.861°, -84.018° and covers 17.3 square miles of land plus 0.3 of water. It borders 6 ZIP codes: 30017, 30039, 30044, 30047, 30045, 30052.
The map draws ZIP code areas only. For the streets inside 30078, 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 30078 compare with the rest of Snellville?
| Measure | 30078 | In Snellville | In Gwinnett County | In GA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 41,597 | 2nd of 2 | 15th of 26 | 80th of 751 |
| Median household income | $98k | 1st of 2 | 9th of 26 | 79th of 476 |
| Median home value | $353k | 1st of 2 | 18th of 26 | 106th of 474 |
Its median household income is higher than in 80% of U.S. residential ZIP codes, and it is denser than 86% 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 30078?
The 2020 Census counted 38,350 people in 30078; the ACS, which samples households over 2020-2024, estimates 41,597. Between the 2010 and 2020 censuses its population grew 16.0% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 41,597
- 2020 Census count
- 38,350+16.0% since 2010 (33,057)
- Households
- 13,295
- 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 30078?
Of the 41,597 people the ACS estimates in 30078, 23.5% are under 18 and 13.3% are 65 or older. The largest group by race and Hispanic origin is Black (not Hispanic) (35.5%), then White (not Hispanic) (33.7%).
- Under 1823.5%
- 18 to 6463.2%
- 65 and older13.3%
- Black, not Hispanic35.5%
- White, not Hispanic33.7%
- Hispanic or Latino13.5%
- Asian, not Hispanic12.6%
- Other or two or more4.7%
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 30078 earn?
Median household income is $98,257 (ACS 2020-2024), the 9th highest of the 26 ranked ZIP codes in Gwinnett County. It rose from $87,203 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $98,257
- Income per person
- $39,107
- Below the poverty line
- 9.3%
- Unemployed (of the labor force)
- 4.8%
- Adults 25+ with a bachelor's degree
- 40.6%
- Adjusted gross income per tax return, 2022
- $76,26018,920 returns; wages 70% 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 30078?
FHFA's house price index for 30078, built from repeat sales and appraisals of the same homes, rose 139% from 2015 to 2025 and rose 65% from 2020 to 2025, and moved +1.9% in 2025.
- Median home value (owners' estimate)
- $353,200
- Median gross rent
- $1,788
- Homes owned by their occupants
- 82.6%
- Housing units
- 13,962
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 30078?
1,224 business establishments had a location in this ZIP code in 2023, 121 more than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance269
- Retail trade185
- Professional, scientific, and technical services144
- Other services (except public administration)135
- Accommodation and food services103
- Construction94
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 30078?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 30017 | Grayson | 26,620 | $100k | 3.7 mi |
| 30039 | Snellville | 52,783 | $94k | 4.4 mi |
| 30044 | Lawrenceville | 101,475 | $77k | 5.1 mi |
| 30047 | Lilburn | 70,121 | $89k | 5.4 mi |
| 30045 | Lawrenceville | 44,993 | $104k | 7.4 mi |
| 30052 | Loganville | 79,811 | $94k | 7.6 mi |
| 30046 | Lawrenceville | 41,850 | $67k | 6.3 mi (near) |
| 30087 | Stone Mountain | 38,977 | $97k | 6.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.