Lamar County, Georgia ZIP codes
2 ZIP codes are in Lamar County, plus 7 that cross in from neighboring counties.
- ZIP codes
- 2
- Population in these ZIPs
- 18,204
- Avg. median income
- $64,100population-weighted
- Cities & towns
- 2
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ZIP codes in Lamar County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 30204 | Barnesville | 13,616 | $62,805 | $260,600 |
| 30257 | Milner | 4,588 | $67,941 | $301,600 |
ZIP codes partly in Lamar County
These ZIP codes are mostly in a neighboring county but cover part of Lamar County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 30224 | Griffin | Spalding County | 28,414 | $70,216 | $256,600 |
| 30233 | Jackson | Butts County | 24,730 | $74,222 | $278,600 |
| 30256 | Meansville | Pike County | 2,838 | $73,571 | $329,700 |
| 30285 | The Rock | Upson County | 589 | $84,732 | $286,100 |
| 30295 | Zebulon | Pike County | 5,567 | $81,667 | $326,400 |
| 31016 | Culloden | Monroe County | 1,885 | — | $245,500 |
| 31097 | Yatesville | Upson County | 1,372 | $64,214 | $233,400 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Lamar County
Nearby counties
Frequently asked questions
How many ZIP codes are in Lamar County, Georgia?
2 ZIP codes are mainly in Lamar County, and 7 more ZIP codes from neighboring areas reach partly into it.
What cities are in Lamar County?
ZIP codes in Lamar County use the city names Barnesville and Milner.