Lamar County, GA ZIP Codes
5 ZIP codes cover all or part of Lamar County, Georgia: 30224, 30204, 30257, 31097 and 30285. The Census Bureau counts 19,571 residents in the county, with a median household income of $67,062 and a median home value of $216,500. Median household income ranges from $62,805 in 30204 to $70,216 in 30224. Its largest communities include Barnesville, Milner and Aldora.
Lamar County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 19,571 |
| Households | 7,133 |
| Median household income | $67,062 |
| Median home value | $216,500 |
| Median age | 39.2 |
| Median rent | $878 |
All 5 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 48,579 |
| Households (sum of ZIP codes) | 17,781 |
| Median household income, range across ZIP codes | $62,805 (30204) to $70,216 (30224) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $67,704 |
| Homeowners | 70.1% |
| Households with kids under 18 | 29.9% |
| Moved in the past year | 10.2% |
| Carrier routes in EDDM2GO's route library | 35 routes, 19,684 homes (5 of 5 ZIP codes) |
Top facts
- Highest median household income in Lamar County: 30224 ($70,216)
- Most residents: 30224 (28,414 people)
- Highest homeownership: 30257 (83.7% own their home)
- Most households with kids: 30224 (32.2% of households)
- Most new movers: 30257 (13.6% moved in last year)
- Youngest median age: 30224 (35.8 years)
- Highest median home value: 30257 ($245,100)
Every ZIP code in Lamar County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 30224 | Griffin | 28,414 | 10,383 | $70,216 | $239,100 | 65.9% | 32.2% | 11.9% | 17 | 11,832 | 10% of its land |
| 30204 | Barnesville | 13,616 | 5,007 | $62,805 | $188,900 | 72.3% | 26.4% | 6.4% | 10 | 5,790 | 92% of its land |
| 30257 | Milner | 4,588 | 1,678 | $67,941 | $245,100 | 83.7% | 30.3% | 13.6% | 5 | 2,326 | 91% of its land |
| 31097 | Yatesville | 1,372 | 560 | $64,214 | $168,500 | 80.9% | 14.5% | 2.8% | 2 | 563 | 11% of its land |
| 30285 | The Rock | 589 | 153 | $84,732 | $211,400 | 88.9% | 39.9% | 7.6% | 1 | 284 | 21% of its land |
A ZIP code is listed for Lamar County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.
Cities and communities
- Barnesville — 6,121 residents · 1 ZIP code
- Milner — 979 residents · 1 ZIP code
- Aldora — 82 residents · 1 ZIP code
Price a mailing to Lamar County ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Lamar County, GA?
- 30224, 30204, 30257, 31097 and 30285. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of Lamar County?
- 19,571 residents in 7,133 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in Lamar County?
- $67,062 for the county as a whole. Its ZIP codes range from $62,805 (30204) to $70,216 (30224).
- Which Lamar County ZIP code has the highest median household income?
- 30224, at $70,216, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Lamar County?
- For the 5 of 5 ZIP codes in EDDM2GO's stored route library: 35 carrier routes reaching 19,684 residential and 1,107 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.