ZIP 22121 is served primarily by Fairfax County, VA — including Centreville. ZIP-level data is sparse — showing the Fairfax County aggregate.
Jul peaks. Sep dips. ZIP-level seasonality is sparse — this is the county aggregate.
Top 5 NFIRS incident types — county-level breakdown.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Gas leak (natural gas or LPG) | 876 | 24.8% | |
| 2 | Power line down | 656 | 18.5% | |
| 3 | Building fires | 220 | 6.2% | |
| 4 | Special outside fire, other | 204 | 5.8% | |
| 5 | Passenger vehicle fire | 154 | 4.4% |
50 cities sit in Fairfax County. Click for the per-city NFIRS profile.
| # | City | Population | 2025 incidents | Building fires | Grade |
|---|---|---|---|---|---|
| 1 | Centreville | 72,680 | 136 | 15 | A- |
| 2 | Reston | 62,339 | 165 | 9 | A+ |
| 3 | McLean | 49,587 | 223 | 12 | A |
| 4 | Burke | 44,228 | 77 | 5 | A+ |
| 5 | Annandale | 42,330 | 187 | 12 | B+ |
| 6 | Oakton | 36,529 | 45 | 2 | A+ |
| 7 | Fair Oaks | 35,130 | 0 | 0 | — |
| 8 | West Falls Church | 31,121 | 0 | 0 | — |
| 9 | Springfield | 31,022 | 3 | 3 | A+ |
| 10 | Tysons | 27,617 | 0 | 0 | — |
| 11 | Bailey's Crossroads | 24,785 | 0 | 0 | — |
| 12 | Herndon | 24,456 | 206 | 17 | B |
| 13 | West Springfield | 23,372 | 6 | 4 | A |
| 14 | Chantilly | 23,107 | 137 | 2 | A- |
| 15 | Woodlawn | 22,966 | 41 | 7 | A- |
| 16 | McNair | 22,187 | 0 | 0 | — |
| 17 | Lorton | 22,049 | 116 | 7 | B+ |
| 18 | Rose Hill | 21,203 | 21 | 6 | A+ |
| 19 | Merrifield | 19,923 | 0 | 0 | A+ |
| 20 | Lincolnia | 19,812 | 0 | 0 | — |
| 21 | Franklin Farm | 18,903 | 0 | 0 | — |
| 22 | Kingstowne | 18,228 | 3 | 0 | A+ |
| 23 | Hybla Valley | 18,104 | 1 | 1 | A+ |
| 24 | Burke Centre | 17,926 | 0 | 0 | — |
| 25 | Franconia | 17,906 | 13 | 2 | A+ |
| 26 | Idylwood | 17,788 | 5 | 0 | A+ |
| 27 | Vienna | 16,401 | 1 | 1 | A+ |
| 28 | Fort Hunt | 16,009 | 0 | 0 | — |
| 29 | Wolf Trap | 15,712 | 0 | 0 | — |
| 30 | Great Falls | 14,968 | 11 | 1 | A- |
| 31 | Groveton | 14,619 | 0 | 0 | — |
| 32 | Huntington | 13,913 | 0 | 0 | — |
| 33 | Newington | 13,560 | 0 | 0 | — |
| 34 | Mount Vernon | 13,299 | 0 | 0 | — |
| 35 | Kings Park West | 13,254 | 0 | 0 | — |
| 36 | Newington Forest | 12,647 | 0 | 0 | — |
| 37 | Fairfax Station | 12,277 | 76 | 6 | A |
| 38 | Dranesville | 12,154 | 0 | 0 | — |
| 39 | Wakefield | 11,621 | 9 | 3 | A+ |
| 40 | Lake Barcroft | 10,591 | 0 | 0 | — |
| 41 | Difficult Run | 10,434 | 0 | 0 | — |
| 42 | George Mason | 10,017 | 0 | 0 | — |
| 43 | Woodburn | 9,960 | 0 | 0 | — |
| 44 | Seven Corners | 9,141 | 302 | 10 | D |
| 45 | Fair Lakes | 8,918 | 0 | 0 | — |
| 46 | Dunn Loring | 8,707 | 9 | 0 | A+ |
| 47 | Greenbriar | 7,945 | 0 | 0 | — |
| 48 | Fort Belvoir | 7,815 | 0 | 0 | — |
| 49 | Long Branch | 7,635 | 0 | 0 | — |
| 50 | Mantua | 7,531 | 0 | 0 | — |
The figures above are historical. For today's air quality, fire-weather warnings, and active fires, go to the official sources.
This ZIP doesn't have enough NFIRS coverage on its own (under 10 reported incidents across 2021–2025) to publish ZIP-level statistics, so we're showing the Fairfax County aggregate above. NFIRS reporting is voluntary and many rural ZIPs roll up to broader county totals. The ZIP-to-county mapping uses SimpleMaps' uscities.zips dataset.