Natural Hazard Loss Profile
Expected annual loss across the 18 natural hazards in FEMA's National Risk Index. Life safety is expressed in fatality-equivalents, combining expected deaths and injuries. Property loss counts building damage only, separate from agriculture.
These figures cover natural hazards only. Structure fire, EMS, and motor vehicle incidents are not included in the National Risk Index and are not counted here, so this is not an all-cause life safety measure. For Washtenaw County, the largest single contributor is Cold Wave, 42% of the life-safety total.
Washtenaw County carries an expected 2 natural hazard fatality-equivalents and $67.1M in building loss per year. Rank chips compare the 83 Michigan counties. Nationally, Washtenaw County ranks 308th of 3,222 U.S. counties for life-safety loss, 2535th for life safety per 100k residents, 314th for property loss, and 2923rd for property loss per resident. Computed from census tract data covering every resident, independent of fire department boundaries.
Add fire mortality, cause, and loss
Natural hazard exposure is one half of the picture. The other half is what your departments run on: fire deaths and injuries, cause of ignition, dollar loss per incident. That comes from NERIS incident reporting, and it grows as departments serving Washtenaw County enroll. Our Regional tier brings it together across your jurisdiction, with participating departments, alongside response time analytics, cross-department benchmarking, and coverage gap analysis.
Talk to us about Washtenaw County See what a department seesWhat Drives the Loss
Total expected annual loss: $92,708,545 per year. Life safety is shown here in dollars, at FEMA's $13.7M value of statistical life, so the three shares sum to the total.
Hazards Ranked Two Ways
The hazard that threatens people is often not the hazard that destroys buildings. Both columns cover the same 18 hazards over the same year.
By life-safety loss ($/yr)
By property loss ($/yr)
Census Tract Risk Map
Shaded by quintile across the census tracts in Washtenaw County. Gray tracts have no modeled loss or no resident population. Per-resident figures on this map use the National Risk Index 2020 tract population.
Fire Service Profile
Department composition covers the 21 departments registered in NERIS Public for Washtenaw County, MI. Departments that have not registered are not counted. Station coverage divides census population by registered stations; department service areas overlap, so their populations are not summed.
Department Rankings
Fire and EMS departments serving Washtenaw County. Click column headers to sort.
NRI Rating is from FEMA's National Risk Index, which measures community risk across 18 natural hazards using expected annual losses, social vulnerability, and community resilience. Life-Safety Loss uses FEMA's Value of Statistical Life ($13.7M per expected fatality) to estimate annual risk to human life.
Department boundaries and station counts are self-reported through NERIS Public and may not reflect current service areas. Population and Life-Safety Loss reflect each department's full jurisdiction. County-level risk metrics are computed from census tract data and are not affected by boundary accuracy. See full methodology.
| Department ▲ | Est. Population ▲ | Life-Safety Loss ▼ | NRI Rating ▲ | Stations ▲ |
|---|---|---|---|---|
| City of Ann Arbor Fire Department | 115,735 | $8.1M | Relatively Low | 6 |
| Oshtemo Fire Department | 83,178 | $3.6M | Very Low | 6 |
| Ypsilanti Township Fire Department | 48,649 | $3.3M | Very Low | 3 |
| Saline Area Fire Department | 43,597 | $2.9M | Relatively Low | 1 |
| Dexter Area Fire Department | 35,706 | $2.5M | Relatively Moderate | 3 |
| Pittsfield Township Fire Department | 36,410 | $2.4M | Very Low | 6 |
| Chelsea Area Fire Authority | 35,033 | $2.3M | Relatively Low | 3 |
| Ann Arbor Township Fire Department | 32,050 | $2.2M | Relatively Low | 4 |
| Green Oak Charter Township Fire Department | 25,887 | $2.1M | Relatively Low | 6 |
| Huron Charter Twp | 29,183 | $2.1M | Relatively Moderate | 9 |
| City Of Alma, Fire Department | 23,192 | $2.0M | Relatively High | 1 |
| Milan Area Fire Department | 21,240 | $1.5M | Relatively Low | 1 |
| Sand Lake Volunteer Fire Department | 14,853 | $1.3M | Relatively Moderate | 3 |
| City Of Ypsilanti Fire Department | 18,003 | $1.3M | Very Low | 1 |
| Scio Township Fire Department | 17,138 | $1.2M | Relatively Moderate | 2 |
| Clinton Fire Department | 13,749 | $1.1M | Relatively Moderate | 1 |
| Superior Township Fire Department | 14,331 | $993.1K | Relatively Moderate | 3 |
| Manchester Township Fire Department | 9,333 | $650.3K | Relatively Moderate | 2 |
| Northfield Township Fire Department | 8,521 | $593.7K | Relatively Low | 3 |
| Salem Township Fire Department | 6,932 | $489.0K | Relatively Moderate | 2 |
| Augusta Township Fire Department | 7,228 | $477.3K | Very Low | 1 |
Risk Snapshot
FEMA Disaster Declarations
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