Air quality history by county in Virginia
EPA reported a daily Air Quality Index for 60 countys in Virginia in at least one year from 1980 to 2025. In 2025, 25 countys had fuller monitoring; across them the median of county median AQI values was 37, lower than the national figure of 40. Prince Edward had the highest share of Good days (98%).
Select a county for its year-by-year AQI history, charts and data notes. Click a column heading to sort.
| Years covered | ||||||
|---|---|---|---|---|---|---|
| Albemarle | 2025 | 363 | 81% | 38 | 56 | 2008–2025 |
| Alexandria City | 2016 | 180 | 97% | 12 | 38 | 1980–2021 |
| Amherst | 1993 | 204 | 48% | 51 | 115 | 1990–1993 |
| Arlington | 2025 | 365 | 87% | 37 | 54 | 1980–2025 |
| Augusta | 1994 | 175 | 59% | 48 | 93 | 1985–1994 |
| Bristol City | 2012 | 122 | 56% | 47 | 59 | 1989–2025 |
| Buchanan | 1991 | 181 | 92% | 28 | 47 | 1988–1992 |
| Campbell | 1994 | 30 | 100% | 15 | 28 | 1989–1994 |
| Caroline | 2025 | 243 | 97% | 35 | 45 | 1993–2025 |
| Carroll | 2025 | 60 | 100% | 7 | 16 | 1989–2025 |
| Charles | 2025 | 364 | 89% | 35 | 51 | 1988–2025 |
| Charlottesville City | 2007 | 60 | 100% | 18 | 29 | 1988–2007 |
| Chesapeake City | 2003 | 347 | 36% | 54 | 72 | 1980–2004 |
| Chesterfield | 2025 | 364 | 81% | 39 | 55 | 1980–2025 |
| Covington City | 1998 | 28 | 96% | 19 | 31 | 1989–1998 |
| Culpeper | 2012 | 54 | 100% | 13 | 20 | 1992–2012 |
| Fairfax | 2025 | 365 | 78% | 42 | 59 | 1980–2025 |
| Fairfax City | 1992 | 123 | 93% | 33 | 47 | 1980–1993 |
| Falls Church City | 1989 | 5 | 40% | 59 | 66 | 1987–1989 |
| Fauquier | 2025 | 245 | 98% | 34 | 44 | 1981–2025 |
| Frederick | 2025 | 365 | 74% | 39 | 58 | 1992–2025 |
| Fredericksburg City | 1981 | 154 | 68% | 44 | 108 | 1980–2017 |
| Giles | 2025 | 357 | 94% | 37 | 47 | 1990–2025 |
| Hampton City | 2025 | 365 | 83% | 38 | 53 | 1980–2025 |
| Hanover | 2025 | 241 | 97% | 36 | 46 | 1980–2025 |
| Henrico | 2025 | 364 | 76% | 40 | 55 | 1980–2025 |
| Henry | 1997 | 202 | 60% | 46 | 100 | 1994–1997 |
| Hopewell City | 2025 | 48 | 100% | 6 | 11 | 1988–2025 |
| Isle of Wight | 1995 | 18 | 100% | 14 | 24 | 1993–1995 |
| King William | 2016 | 29 | 100% | 8 | 14 | 1990–2016 |
| Loudoun | 2025 | 365 | 81% | 40 | 58 | 1990–2025 |
| Lynchburg City | 2016 | 120 | 80% | 38 | 54 | 1988–2025 |
| Madison | 2025 | 330 | 86% | 40 | 58 | 1983–2025 |
| Martinsville City | 1998 | 29 | 100% | 15 | 35 | 1989–1998 |
| Newport News City | 2010 | 161 | 86% | 23 | 52 | 1980–2010 |
| Norfolk City | 2025 | 363 | 86% | 33 | 53 | 1980–2025 |
| Northampton | 1990 | 214 | 61% | 45 | 105 | 1980–1990 |
| Northumberland | 2003 | 37 | 97% | 12 | 23 | 1992–2003 |
| Page | 2015 | 243 | 80% | 43 | 57 | 1999–2015 |
| Pittsylvania | 2022 | 363 | 100% | 3 | 7 | 2021–2022 |
| Portsmouth City | 1991 | 60 | 100% | 19 | 35 | 1989–1991 |
| Prince Edward | 2025 | 325 | 98% | 33 | 44 | 1990–2025 |
| Prince William | 2025 | 365 | 96% | 35 | 46 | 1980–2025 |
| Richmond City | 2025 | 365 | 79% | 36 | 54 | 1980–2025 |
| Roanoke | 2025 | 365 | 84% | 37 | 55 | 1981–2025 |
| Roanoke City | 2012 | 366 | 56% | 47 | 61 | 1985–2013 |
| Rockbridge | 2025 | 264 | 94% | 36 | 46 | 1994–2025 |
| Rockingham | 2025 | 365 | 80% | 39 | 56 | 1997–2025 |
| Salem City | 2023 | 120 | 72% | 36 | 61 | 1980–2025 |
| Smyth | 1989 | 213 | 64% | 45 | 87 | 1980–1997 |
| Stafford | 2025 | 360 | 96% | 35 | 46 | 1992–2025 |
| Suffolk City | 2025 | 245 | 97% | 38 | 47 | 1987–2025 |
| Tazewell | 1999 | 29 | 100% | 13 | 27 | 1995–1999 |
| Virginia Beach City | 2025 | 365 | 81% | 34 | 55 | 1980–2025 |
| Warren | 1994 | 211 | 56% | 47 | 90 | 1983–2012 |
| Washington | 1985 | 16 | 75% | 48 | 54 | 1985–1985 |
| Winchester City | 2020 | 58 | 100% | 6 | 12 | 1989–2020 |
| Wise | 2000 | 41 | 100% | 19 | 30 | 1994–2000 |
| Wythe | 2025 | 239 | 94% | 39 | 48 | 1990–2025 |
| York | 1995 | 15 | 100% | 18 | 25 | 1989–1995 |
Latest year is the most recent year with at least 120 monitored days, or the most recent year available if none qualifies. Counties without EPA AQI monitoring do not appear.
Source: U.S. EPA AirData, “Annual AQI by County” files for 1980–2025 (EPA download page). EPA file dates: 2026-06-26. Imported into EnviroNearby November 5, 2026. How we use this data · Report a problem