ZIP 37315 is served primarily by Hamilton County, TN — including Chattanooga. ZIP-level data is sparse — showing the Hamilton County aggregate. FEMA NRI rates wildfire risk here as High.
Mar peaks. Dec dips. ZIP-level seasonality is sparse — this is the county aggregate.
Top 5 NFIRS incident types — county-level breakdown.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Power line down | 671 | 22.8% | |
| 2 | Gas leak (natural gas or LPG) | 230 | 7.8% | |
| 3 | Building fires | 221 | 7.5% | |
| 4 | Brush, or brush and grass mixture fire | 169 | 5.7% | |
| 5 | Trash or rubbish fire, contained | 152 | 5.2% |
18 cities sit in Hamilton County. Click for the per-city NFIRS profile.
| # | City | Population | 2025 incidents | Building fires | Grade |
|---|---|---|---|---|---|
| 1 | Chattanooga | 181,288 | 1,880 | 135 | B- |
| 2 | East Ridge | 22,040 | 192 | 11 | B |
| 3 | Soddy-Daisy | 13,091 | 0 | 0 | — |
| 4 | Red Bank | 11,919 | 17 | 1 | A+ |
| 5 | Middle Valley | 11,619 | 1 | 0 | A+ |
| 6 | Collegedale | 11,001 | 1 | 0 | A+ |
| 7 | Signal Mountain | 8,833 | 93 | 4 | B+ |
| 8 | Harrison | 8,313 | 64 | 8 | B |
| 9 | Apison | 4,199 | 49 | 2 | A- |
| 10 | Sale Creek | 3,065 | 0 | 0 | A- |
| 11 | Lookout Mountain | 2,128 | 9 | 2 | A |
| 12 | Lakesite | 2,056 | 26 | 4 | B+ |
| 13 | Falling Water | 2,022 | 0 | 0 | A+ |
| 14 | Mowbray Mountain | 1,902 | 0 | 0 | — |
| 15 | Walden | 1,802 | 30 | 0 | B+ |
| 16 | Fairmount | 1,747 | 0 | 0 | A+ |
| 17 | Ridgeside | 919 | 2 | 0 | A+ |
| 18 | Flat Top Mountain | 891 | 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 Hamilton 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.