Data / Rankings / Median Air Quality Index (US EPA) / Counties in Georgia

Counties in Georgia by median Air Quality Index (US EPA)

Fulton County had the highest median Air Quality Index (US EPA) of 35 counties in 2007, at 67. Spalding County had the lowest, at 19. The median was 57. Source: the U.S. Environmental Protection Agency.

Keep it in a collection in your library.
Highest67Fulton County
Lowest19Spalding County
Median5735 counties

Map of counties, 2007

Bibb County: 60 indexCharlton County: 39 indexChatham County: 58 indexChattooga County: 49 indexClarke County: 59 indexClayton County: 61 indexCobb County: 60 indexCoffee County: 57 indexColumbia County: 47 indexCoweta County: 60 indexDawson County: 47 indexDeKalb County: 65 indexDougherty County: 56 indexDouglas County: 50 indexFayette County: 48 indexFloyd County: 63 indexFulton County: 67 indexGlynn County: 41 indexGwinnett County: 62 indexHall County: 57 indexHenry County: 59 indexHouston County: 56 indexLowndes County: 52 indexMurray County: 52 indexMuscogee County: 59 indexPaulding County: 58 indexPike County: 44 indexRichmond County: 62 indexRockdale County: 36 indexSpalding County: 19 indexSumter County: 46 indexWalker County: 59 indexWalton County: 55 indexWashington County: 58 indexWilkinson County: 59 index
  • Under 47
  • 47 to 52
  • 52 to 57
  • 57 to 59
  • 59 to 60
  • 60 and over
  • No data
index, 2007. Hatched areas have no value for this period. Source: EPA, EPA AirData annual AQI by county: median daily AQI. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2007

Fulton County: 67 indexFulton County67DeKalb County: 65 indexDeKalb County65Floyd County: 63 indexFloyd County63Gwinnett County: 62 indexGwinnett County62Richmond County: 62 indexRichmond County62Clayton County: 61 indexClayton County61Bibb County: 60 indexBibb County60Cobb County: 60 indexCobb County60Coweta County: 60 indexCoweta County60Clarke County: 59 indexClarke County59Henry County: 59 indexHenry County59Muscogee County: 59 indexMuscogee County59Walker County: 59 indexWalker County59Wilkinson County: 59 indexWilkinson County59Chatham County: 58 indexChatham County58Paulding County: 58 indexPaulding County58Washington County: 58 indexWashington County58Coffee County: 57 indexCoffee County57Hall County: 57 indexHall County57Dougherty County: 56 indexDougherty County56Houston County: 56 indexHouston County56Walton County: 55 indexWalton County55Lowndes County: 52 indexLowndes County52Murray County: 52 indexMurray County52Douglas County: 50 indexDouglas County50Chattooga County: 49 indexChattooga County49Fayette County: 48 indexFayette County48Columbia County: 47 indexColumbia County47Dawson County: 47 indexDawson County47Sumter County: 46 indexSumter County46Pike County: 44 indexPike County44Glynn County: 41 indexGlynn County41Charlton County: 39 indexCharlton County39Rockdale County: 36 indexRockdale County36Spalding County: 19 indexSpalding County19Fulton County: 67 indexFulton County67DeKalb County: 65 indexDeKalb County65Floyd County: 63 indexFloyd County63Gwinnett County: 62 indexGwinnett County62Richmond County: 62 indexRichmond County62Clayton County: 61 indexClayton County61Bibb County: 60 indexBibb County60Cobb County: 60 indexCobb County60Coweta County: 60 indexCoweta County60Clarke County: 59 indexClarke County59Henry County: 59 indexHenry County59Muscogee County: 59 indexMuscogee County59Walker County: 59 indexWalker County59Wilkinson County: 59 indexWilkinson County59Chatham County: 58 indexChatham County58Paulding County: 58 indexPaulding County58Washington County: 58 indexWashington County58Coffee County: 57 indexCoffee County57Hall County: 57 indexHall County57Dougherty County: 56 indexDougherty County56Houston County: 56 indexHouston County56Walton County: 55 indexWalton County55Lowndes County: 52 indexLowndes County52Murray County: 52 indexMurray County52Douglas County: 50 indexDouglas County50Chattooga County: 49 indexChattooga County49Fayette County: 48 indexFayette County48Columbia County: 47 indexColumbia County47Dawson County: 47 indexDawson County47Sumter County: 46 indexSumter County46Pike County: 44 indexPike County44Glynn County: 41 indexGlynn County41Charlton County: 39 indexCharlton County39Rockdale County: 36 indexRockdale County36Spalding County: 19 indexSpalding County19
index. Source: EPA, EPA AirData annual AQI by county: median daily AQI. Retrieved 2026-10-12.

Full ranking

RankCounties2007
index		Change on 2006
1Fulton County67-2
2DeKalb County650
3Floyd County63-2
4Gwinnett County62-1
4Richmond County620
6Clayton County61-4
7Bibb County60-3
7Cobb County60+1
7Coweta County600
10Clarke County59-2
10Henry County59-2
10Muscogee County59-2
10Walker County59-4
10Wilkinson County59-2
15Chatham County58-3
15Paulding County58-1
15Washington County58-4
18Coffee County57-3
18Hall County57-3
20Dougherty County56-2
20Houston County56-5
22Walton County55-2
23Lowndes County52-5
23Murray County52+2
25Douglas County50+3
26Chattooga County49+5
27Fayette County480
28Columbia County47+3
28Dawson County47-1
30Sumter County46-1
31Pike County440
32Glynn County41-4
33Charlton County39-8
34Rockdale County36-2
35Spalding County19-3

Other periods

About this ranking

Median of the daily Air Quality Index (AQI) values of a US county over the days of the year with an AQI, from the EPA AirData annual summaries.

More on how it is measured
  • The daily county AQI is the highest AQI among the monitors and pollutants reported that day (ozone, PM2.5, PM10, carbon monoxide and nitrogen dioxide).
  • Lower is cleaner: 0 to 50 is good, 51 to 100 moderate and above 100 unhealthy for sensitive groups.

United States counties with air quality monitors only, about 1,000 of some 3,100 in recent years; a county without monitors has no value. The number of days with an AQI differs between counties because some monitors run only in the ozone season.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. 4 counties with data in other periods have no value for 2007 and are left out rather than filled from another source. Equal values share a rank.

How to cite

U.S. Environmental Protection Agency, Air Quality System, AirData. EPA AirData annual AQI by county: median daily AQI. https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Environmental Protection Agency. (2026). EPA AirData annual AQI by county: median daily AQI (Counties in Georgia by median Air Quality Index (US EPA), 2007) [Data set]. Retrieved October 12, 2026, from https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual

MLA 9

EPA AirData annual AQI by county: median daily AQI, Counties in Georgia by median Air Quality Index (US EPA), 2007. U.S. Environmental Protection Agency, 13 July 2026, https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Invokely, https://invokely.ai/rankings/median-air-quality-index/georgia-counties?period=2007. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Environmental Protection Agency. 2026. EPA AirData annual AQI by county: median daily AQI. Counties in Georgia by median Air Quality Index (US EPA), 2007. Dataset. Accessed October 12, 2026. https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Also distributed by Invokely, https://invokely.ai/rankings/median-air-quality-index/georgia-counties?period=2007.

Harvard

U.S. Environmental Protection Agency (2026) EPA AirData annual AQI by county: median daily AQI, Counties in Georgia by median Air Quality Index (US EPA), 2007 [Dataset]. Available at: https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual, via Invokely: https://invokely.ai/rankings/median-air-quality-index/georgia-counties?period=2007 (Accessed: 12 October 2026).

BibTeX
@misc{environmental_counties_in_georgia_by_2007,
  author = {{U.S. Environmental Protection Agency}},
  title = {{EPA AirData annual AQI by county: median daily AQI: Counties in Georgia by median Air Quality Index (US EPA), 2007}},
  year = {2026},
  howpublished = {Data set},
  url = {https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/median-air-quality-index/georgia-counties?period=2007. Publisher attribution: U.S. Environmental Protection Agency, Air Quality System, AirData. EPA AirData annual AQI by county: median daily AQI. https://aqs.epa.gov/aqsweb/airdata/download\_files.html\#Annual. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Environmental Protection Agency
TI  - EPA AirData annual AQI by county: median daily AQI: Counties in Georgia by median Air Quality Index (US EPA), 2007
PY  - 2026
DA  - 2026/07/13
PB  - U.S. Environmental Protection Agency
DB  - Invokely
UR  - https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual
L2  - https://invokely.ai/rankings/median-air-quality-index/georgia-counties?period=2007
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/median-air-quality-index/georgia-counties?period=2007.
N1  - Publisher attribution: U.S. Environmental Protection Agency, Air Quality System, AirData. EPA AirData annual AQI by county: median daily AQI. https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Retrieved 2026-10-12.
ER  -
Embed this chart

Paste this code into a web page or a blog post. The chart shows the latest figures as they are published, with the source and a link back to this page.

Sites that read oEmbed links, such as WordPress, can show the chart when you paste the link to this page.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank Counties in Georgia by median Air Quality Index (US EPA) using official data, and cite the source.
rank_places {"indicator":"aqi_median","level":"province","within":"Georgia","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=aqi_median&level=province&within=Georgia&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

Which county has the highest median Air Quality Index (US EPA)?

Fulton County, with 67 in 2007, according to the U.S. Environmental Protection Agency.

Which county has the lowest median Air Quality Index (US EPA)?

Spalding County, with 19 in 2007.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Environmental Protection Agency, EPA AirData annual AQI by county: median daily AQI. Retrieved 2026-10-12. 4 counties have no value for 2007 and are not ranked.

Median Air Quality Index (US EPA): other rankings

Counties in Georgia: more rankings