ZIP 80263 is served primarily by Adams County, CO — including Thornton. ZIP-level data is sparse — showing the Adams County aggregate. FEMA NRI rates wildfire risk here as Very High.
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) | 398 | 13.6% | |
| 2 | Building fires | 392 | 13.4% | |
| 3 | Unauthorized burning | 380 | 13.0% | |
| 4 | Carbon monoxide incident | 191 | 6.5% | |
| 5 | Passenger vehicle fire | 176 | 6.0% |
14 cities sit in Adams County. Click for the per-city NFIRS profile.
| # | City | Population | 2025 incidents | Building fires | Grade |
|---|---|---|---|---|---|
| 1 | Thornton | 141,799 | 575 | 99 | A- |
| 2 | Westminster | 115,502 | 647 | 75 | A |
| 3 | Commerce City | 63,050 | 274 | 26 | B+ |
| 4 | Brighton | 40,569 | 262 | 30 | B+ |
| 5 | Northglenn | 37,948 | 203 | 36 | B+ |
| 6 | Sherrelwood | 19,254 | 4 | 2 | A+ |
| 7 | Welby | 16,287 | 1 | 0 | A+ |
| 8 | Federal Heights | 14,173 | 70 | 13 | B+ |
| 9 | Berkley | 11,185 | 0 | 0 | A+ |
| 10 | Derby | 9,009 | 0 | 0 | — |
| 11 | Twin Lakes | 7,686 | 0 | 0 | A+ |
| 12 | Shaw Heights | 5,458 | 0 | 0 | A+ |
| 13 | Todd Creek | 5,057 | 0 | 0 | — |
| 14 | Bennett | 3,299 | 103 | 13 | C- |
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 Adams 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.