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ZIP profile (county fallback)

Fires in ZIP 01863

ZIP 01863 is served primarily by Middlesex County, MA — including Cambridge. ZIP-level data is sparse — showing the Middlesex County aggregate. FEMA NRI rates wildfire risk here as High.

ZIP 01863 FIPS 25017 county fallback
Total incidents (2025)
10,516
55,269 across 5 years
Building fires
464
541 wildland
Wildfire risk
73
FEMA NRI · High
Active fires
0
in Middlesex County
02 Seasonality (county-level)

When do fires happen in Middlesex County?

Oct peaks. Dec dips. ZIP-level seasonality is sparse — this is the county aggregate.

Jan 941
Feb 701
Mar 921
Apr 963
May 835
Jun 920
Jul 983
Aug 888
Sep 885
Oct 985
Nov 805
Dec 689
03 Top incident types

What kinds of calls lead in Middlesex County?

Top 5 NFIRS incident types — county-level breakdown.

#Incident typeCountShare 
1 Cooking fire, confined to container 2,319 22.1%
2 Gas leak (natural gas or LPG) 1,157 11.0%
3 Power line down 1,095 10.4%
4 Electrical wiring/equipment problem, other 655 6.2%
5 Carbon monoxide incident 614 5.8%
09 Cities served

Cities mapped to ZIP 01863

50 cities sit in Middlesex County. Click for the per-city NFIRS profile.

#CityPopulation2025 incidentsBuilding firesGrade
1 Cambridge 117,962 1,990 45 C+
2 Lowell 114,737 1,126 34 B
3 Newton 88,453 920 11 B
4 Somerville 80,464 1,392 70 C+
5 Framingham 71,805 894 36 B
6 Malden 65,463 312 32 B+
7 Waltham 64,711 61 2 B+
8 Medford 61,748 742 26 B-
9 Everett 48,685 351 39 A-
10 Arlington 45,906 412 9 B
11 Billerica 41,708 255 12 B+
12 Marlborough 41,391 343 14 B
13 Woburn 40,992 289 23 A-
14 Natick 36,589 128 8 B+
15 Chelmsford 36,182 150 14 A-
16 Watertown Town 35,181 0 0 —
17 Lexington 34,221 49 5 A+
18 Dracut 32,291 182 12 B+
19 Tewksbury 31,089 127 4 A
20 Melrose 29,477 253 5 B
21 Wakefield 27,054 193 6 B
22 Belmont 26,997 180 6 A-
23 Burlington 26,169 36 3 B
24 Reading 25,415 167 25 A-
25 Westford 24,524 171 14 A-
26 Acton 23,864 177 6 A-
27 Wilmington 23,191 80 0 A
28 Stoneham 22,992 240 19 B+
29 Winchester 22,809 249 8 B+
30 Hudson 19,947 155 8 A-
31 Sudbury 18,926 266 18 B-
32 Hopkinton 18,748 245 25 B-
33 Ashland 18,634 183 14 B+
34 Concord 18,265 195 11 B
35 North Reading 15,529 141 7 B+
36 Holliston 14,902 123 9 B
37 Bedford 14,273 271 1 B-
38 Wayland 13,821 289 7 C
39 Tyngsborough 12,371 3 3 A-
40 Weston 11,759 266 4 C
41 Pepperell 11,625 67 2 B
42 Groton 11,254 109 11 B+
43 Maynard 10,671 150 20 B-
44 Littleton 10,084 35 3 B-
45 Townsend 9,070 100 30 B+
46 Ayer 8,408 108 12 B-
47 Stow 7,111 15 1 B+
48 Shirley 7,092 69 30 B+
49 Cochituate 6,937 0 0 —
50 Lincoln 6,928 174 9 C+
11 Current conditions

Right now in 01863

The figures above are historical. For today's air quality, fire-weather warnings, and active fires, go to the official sources.

Air quality (AQI) EPA AirNow01863 → Red Flag & fire-weather NWS forecast & alerts01863 → Active fires NIFC snapshotmap → Full Middlesex County report county profilego →

About ZIP-level data

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 Middlesex 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.