ZIP 94598 is served primarily by Contra Costa County, CA — including Concord. ZIP-level data is sparse — showing the Contra Costa County aggregate. FEMA NRI rates wildfire risk here as Very High.
Jan peaks. Nov dips. ZIP-level seasonality is sparse — this is the county aggregate.
Top 5 NFIRS incident types — county-level breakdown.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Outside rubbish, trash or waste fire | 274 | 19.0% | |
| 2 | Outside rubbish fire, other | 196 | 13.6% | |
| 3 | Hazardous condition, other | 127 | 8.8% | |
| 4 | Gas leak (natural gas or LPG) | 113 | 7.8% | |
| 5 | Building fires | 107 | 7.4% |
49 cities sit in Contra Costa County. Click for the per-city NFIRS profile.
| # | City | Population | 2025 incidents | Building fires | Grade |
|---|---|---|---|---|---|
| 1 | Concord | 125,007 | 555 | 29 | B+ |
| 2 | Richmond | 115,619 | 874 | 81 | B- |
| 3 | Antioch | 115,016 | 839 | 46 | B |
| 4 | San Ramon | 86,119 | 151 | 9 | A+ |
| 5 | Pittsburg | 76,419 | 343 | 14 | B+ |
| 6 | Walnut Creek | 69,809 | 249 | 15 | A- |
| 7 | Brentwood | 64,443 | 286 | 13 | A- |
| 8 | Oakley | 43,525 | 161 | 6 | A+ |
| 9 | Danville | 43,449 | 103 | 10 | A+ |
| 10 | Martinez | 37,093 | 193 | 3 | B+ |
| 11 | Pleasant Hill | 34,504 | 137 | 3 | A |
| 12 | San Pablo | 31,907 | 308 | 18 | B- |
| 13 | Hercules | 26,041 | 52 | 4 | A- |
| 14 | El Cerrito | 25,869 | 196 | 12 | A- |
| 15 | Lafayette | 25,310 | 112 | 7 | A |
| 16 | Bay Point | 24,407 | 148 | 7 | A- |
| 17 | Orinda | 19,477 | 13 | 1 | A+ |
| 18 | Pinole | 18,946 | 91 | 6 | A |
| 19 | Moraga | 16,859 | 3 | 0 | A+ |
| 20 | Discovery Bay | 15,362 | 42 | 8 | A+ |
| 21 | Alamo | 14,355 | 42 | 1 | A |
| 22 | Clayton | 11,070 | 39 | 3 | A+ |
| 23 | Blackhawk | 10,622 | 15 | 1 | A+ |
| 24 | Rodeo | 9,334 | 50 | 9 | A+ |
| 25 | Contra Costa Centre | 6,884 | 0 | 0 | — |
| 26 | Camino Tassajara | 6,238 | 0 | 0 | — |
| 27 | Saranap | 6,136 | 0 | 0 | — |
| 28 | Kensington | 5,309 | 25 | 1 | A- |
| 29 | Tara Hills | 5,202 | 0 | 0 | A+ |
| 30 | Pacheco | 5,041 | 41 | 1 | B+ |
| 31 | San Miguel | 4,004 | 265 | 22 | C |
| 32 | North Richmond | 3,734 | 2 | 0 | A |
| 33 | Crockett | 3,574 | 4 | 0 | A- |
| 34 | Rollingwood | 3,483 | 0 | 0 | — |
| 35 | East Richmond Heights | 3,285 | 0 | 0 | — |
| 36 | Vine Hill | 3,217 | 0 | 0 | — |
| 37 | Reliez Valley | 3,190 | 0 | 0 | — |
| 38 | Montalvin Manor | 2,195 | 0 | 0 | A+ |
| 39 | Bethel Island | 1,993 | 22 | 0 | B- |
| 40 | Byron | 1,918 | 22 | 2 | B- |
| 41 | Knightsen | 1,646 | 8 | 0 | A |
| 42 | Shell Ridge | 1,041 | 0 | 0 | — |
| 43 | Castle Hill | 1,010 | 0 | 0 | — |
| 44 | Acalanes Ridge | 961 | 0 | 0 | — |
| 45 | Norris Canyon | 954 | 0 | 0 | — |
| 46 | Alhambra Valley | 917 | 0 | 0 | — |
| 47 | North Gate | 900 | 0 | 0 | — |
| 48 | Diablo | 772 | 2 | 0 | A- |
| 49 | Clyde | 721 | 0 | 0 | A+ |
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 Contra Costa 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.