Mercer, NJ

County incident profile · 2021–2025

77,558
5-Year Incidents
31
Departments
386,483
Population
40.1
Incidents / 1K / Yr
Data disclaimer: Based on the NFIRS Public Data Release (2021–2025). NFIRS is voluntarily reported and may not include all departments or incidents. Some departments have missing years or incomplete records. Totals shown reflect data as submitted and may not represent complete activity.

Incident Composition (2021–2025)

EMS / Rescue
25,461 (32.8%)
False Alarms
18,771 (24.2%)
Good Intent
15,196 (19.6%)
Fire
5,466 (7%)
Service Calls
4,931 (6.4%)

5-Year Trends

Total Incidents

By Incident Type

Key Metrics

15,512
Avg Incidents / Year
32.8%
EMS Share
7%
Fire Share
24.2%
False Alarm Rate
+122.4%
5-Year Trend
31
Departments

Departments

Showing 31 of 31
Department 5-Year Incidents Fire % EMS % False Alarm % Trend
Hamilton Twp Fire Districts 21,807 4.8% 50.5% 15.7% +611.7%
Trenton Fire Department 13,355 7.5% 44% 20.7% +29.4%
Robbinsville Twp Fire Dept 6,491 4.8% 48.5% 18.3% +291.8%
Lawrence Twp FD 4,864 7.6% 21.8% 28.2% +111.5%
Ewing Township Fire Department 4,066 14.7% 15.8% 28.6% +265%
Prospect Hts Vol Fire Co1 4,031 10.9% 10.2% 37.5% +10.9%
West Trenton Vol Fire Company 3,331 11.5% 11.6% 31.2% +104.3%
Princeton Borough Bureau of Fi 2,762 5.4% 4.2% 56.7% +269.4%
Princeton Junct Fire Dept 2,574 6.4% 4.9% 39.2% +134%
Pennington Fire Company 2,493 6.6% 6.1% 36.9% +15.6%
Hopewell Twp Fire District 1 2,149 8.3% 20.9% 25.9% +9%
West Windsor Vol Fire Co1 2,095 8.4% 3.1% 28.7% +48.7%
Hopewell Fire Department 1,891 4.7% 36.8% 18% -69.4%
Hightstown Engine Company1 1,728 11.3% 5% 25.9% -32.4%
East Windsor Vfc2 1,154 8.9% 3.1% 37% -22.9%
West Windsor Fireemerservices 984 3.5% 66.2% 13.3% +2034.1%
Bristol Meyers Squibb 980 0.6% 24.6% 15.4% +109.3%
Princeton Plasma FD 511 8.2% 43.8% 14.5%
Trenton Mercer Airport 292 4.5% 33.9% 30.5% -14.7%
Pennington Road 0 0% 0% 0%
Colonial Vol Fire Co 0 0% 0% 0%
Hamilton Twp Fire Dist2 0 0% 0% 0%
Enterprisehamilton FD 0 0% 0% 0%
De Cou Hose Co 0 0% 0% 0%
Fire Dist7 Nottingham Fire Co 0 0% 0% 0%
Groveville Fire Co1 0 0% 0% 0%
Rusling Hose Co 0 0% 0% 0%
White Horse Fire Co 0 0% 0% 0%
Slackwood Fire Company 0 0% 0% 0%
Lawrence Road Fire Company 0 0% 0% 0%
Lawrenceville Fire Co 0 0% 0% 0%
No departments match your search.

Want deeper analysis?

We help fire departments with data analysis, grant support, and community risk planning.