ZIP 07851 is served primarily by Sussex County, NJ — including Vernon. ZIP-level data is sparse — showing the Sussex County aggregate.
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 | 93 | 14.6% | |
| 2 | Gas leak (natural gas or LPG) | 86 | 13.5% | |
| 3 | Building fires | 64 | 10.1% | |
| 4 | Brush, or brush and grass mixture fire | 55 | 8.6% | |
| 5 | Carbon monoxide incident | 55 | 8.6% |
28 cities sit in Sussex County. Click for the per-city NFIRS profile.
| # | City | Population | 2025 incidents | Building fires | Grade |
|---|---|---|---|---|---|
| 1 | Vernon | 22,440 | 56 | 5 | A- |
| 2 | Sparta | 19,775 | 10 | 2 | A+ |
| 3 | Hopatcong | 14,411 | 2 | 1 | A+ |
| 4 | Wantage | 10,858 | 47 | 2 | A- |
| 5 | Lake Mohawk | 9,703 | 0 | 0 | — |
| 6 | Newton | 8,370 | 51 | 9 | B- |
| 7 | Hardyston | 8,160 | 8 | 3 | A |
| 8 | Byram | 8,059 | 2 | 0 | A+ |
| 9 | Andover | 6,020 | 6 | 1 | A+ |
| 10 | Frankford | 5,315 | 0 | 0 | — |
| 11 | Hampton | 4,906 | 22 | 5 | A- |
| 12 | Highland Lakes | 4,089 | 78 | 7 | B- |
| 13 | Stillwater | 4,015 | 27 | 5 | B+ |
| 14 | Montague | 3,800 | 3 | 1 | B+ |
| 15 | Green | 3,620 | 0 | 0 | A+ |
| 16 | Stanhope | 3,533 | 9 | 1 | A |
| 17 | Hamburg | 3,274 | 45 | 0 | B- |
| 18 | Fredon | 3,261 | 1 | 1 | A- |
| 19 | Lafayette | 2,426 | 4 | 0 | A+ |
| 20 | Ogdensburg | 2,215 | 0 | 0 | — |
| 21 | Sandyston | 2,036 | 0 | 0 | A+ |
| 22 | Byram Center | 1,969 | 0 | 0 | — |
| 23 | Sussex | 1,918 | 27 | 4 | B- |
| 24 | Vernon Center | 1,493 | 0 | 0 | — |
| 25 | Crandon Lakes | 1,141 | 0 | 0 | — |
| 26 | Vernon Valley | 1,084 | 0 | 0 | — |
| 27 | Layton | 998 | 1 | 0 | A+ |
| 28 | Branchville | 708 | 4 | 1 | B+ |
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 Sussex 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.