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Risk & Response

Johnson County, IA

Community risk profile | NRI Score: 70.1 Relatively High

156,639
Population
13
Departments
25
Stations
36
Census Tracts

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, not agriculture.

Natural Hazard Life Safety
2.56
expected fatality-equivalents per year, natural hazards only
2nd highest of 99
Life Safety per 100k
1.63
natural hazard fatality-equivalents per 100,000 residents
31st highest of 99
Natural Hazard Property Loss
$58.4M
expected building loss per year, natural hazards only
2nd highest of 99
Property Loss per Resident
$373
natural hazard building loss per resident per year
54th highest of 99

These figures cover natural hazards only. Structure fire, EMS, and motor vehicle incidents are not in the National Risk Index, so this is not an all-cause life safety measure. For Johnson County, the largest single contributor is Tornado, 42% of the life-safety total.

Johnson County carries an expected 3 natural hazard fatality-equivalents and $58.4M in building loss per year. Rank chips compare the 99 Iowa counties. Nationally, Johnson County ranks 212th of 3,222 U.S. counties for life-safety loss, 897th for life safety per 100k residents, 346th for property loss, and 1359th 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 only part of the risk. Fire deaths and injuries, cause of ignition, and dollar loss per incident come from NERIS incident reporting, which grows as departments serving Johnson County enroll. Our Regional tier adds that data for the departments your jurisdiction sponsors, next to public risk and NERIS adoption for every department in Johnson County.

Talk to us about Johnson County See what a department sees

Loss Breakdown

61%
36%
Property (buildings): $58.4M (60.7%)
Life safety: $35.0M (36.4%)
Agriculture: $2.8M (2.9%)

Total expected annual loss: $96,250,192 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)

Tornado
$14.7M
Cold Wave
$10.3M
Strong Wind
$4.0M
Heat Wave
$3.5M
Lightning
$769K
Inland Flooding
$681K

By property loss ($/yr)

Inland Flooding
$26.3M
Tornado
$21.5M
Strong Wind
$5.9M
Hail
$4.0M
Ice Storm
$244K
Earthquake
$229K

Census Tract Risk Map

Shaded by quintile across the census tracts in Johnson 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

15%
77%
Career: 8% (1)
Combination: 15% (2)
Volunteer: 77% (10)
Residents per Station
6,266
census population per registered station
Stations per 100k
16.0
registered stations per 100,000 residents

Department composition covers the 13 departments registered in NERIS Public for Johnson County, IA. 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 Johnson 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.

Showing 13 departments
Department ▲ Est. Population ▲ Life-Safety Loss ▼ NRI Rating ▲ Stations ▲
Iowa City Fire Department 77,743 $17.4M Relatively High 8
North Liberty Fire Department 25,374 $5.3M Relatively High 1
Coralville Fire Department 24,095 $5.2M Relatively Moderate 1
Kalona Volunteer Fire Department 14,207 $2.4M Relatively High 1
Solon Fire Department 7,817 $1.8M Very High 2
Amana Fire Department 8,951 $1.5M Relatively High 2
Tiffin Volunteer Fire Department 7,861 $1.3M Very High 4
Jefferson-Monroe Fire Department, Inc. 4,888 $1.1M Relatively High 1
Hills Fire Department 3,489 $833.5K Very High 1
Oxford Volunteer Fire Department 2,332 $467.7K Very High 1
Lone Tree Fire And Rescue 1,667 $452.9K Very High 1
Wellman Volunteer Fire Department 2,687 $319.5K Very High 1
West Liberty Fire Department 32 $8.7K Very High 1
No departments match your search.

Risk Snapshot

17.1%
Poverty Rate
13.3%
Age 65+
9.9%
Disability Rate
4.7%
Uninsured
36.8%
Pre-1980 Housing
3.8%
Mobile Homes
7.1%
Vacancy Rate
0.5%
Wood Heat
$82,966
Median HH Income

FEMA Disaster Declarations

3
Last 10 Years
12
Last 25 Years
Flood
Most Frequent

Every department in your region, on one briefing

Our Regional tier gives state fire marshals and county fire authorities one briefing across every department in the jurisdiction: priority tracts ranked by risk and demand, NERIS adoption by county, and a quarterly report with a page per department. Response times appear for the departments you sponsor. Free 90-day pilot.

Explore the Regional Tier See the Response Demo