COUNTY REPORT OH

Allen County, Ohio

Name: Home Safety Data for Allen County, Ohio
Creator: ZipCheckup
License: https://creativecommons.org/licenses/by/4.0/

14 ZIP codes · Avg score 65/100 · Grade C

ZipCheckup grade for Allen County: C.

A mixed picture - some signals here are worth your attention.

Allen County: 14 ZIP codes, mid-range safety grade.

How Allen County Compares

Allen County65/100

Ohio avg60/100

National avg73/100

How Allen County Compares

County Grade

65/100

Avg Safety Score

ZIP Codes

Water Systems

Allen County scores 5 points above the Ohio state average (60/100) and 8 points below the national average (73/100).

Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData

County Grade

Avg Safety Score

ZIP Codes

Bluffton

Best ZIP: 45817 (66/100)

Lima

Lowest ZIP: 45807 (64/100)

$154K

Median Home Value

$667

Avg Remediation (0.43% of home value)

ZIP Code Risk Map

Water Quality Map: Allen County, Ohio

Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.

A B C D F

Key Risk Factors

Health risk index: 14.8 (asthma 11.1%, diabetes 14.5%)

Modeled additional annual cost estimate per homeowner: $1,648, largest modeled factor: Flood

75% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 11.1% (national: 8.9%)

Diabetes 14.5% (national: 10.5%)

Obesity 39.7% (national: 32.4%)

Black markers indicate national averages. Source: CDC PLACES, Census ACS.

Infrastructure Overview

1961

Median Build Year

75%

Pre-1980 Housing

49/100

Infrastructure Stress Indicator

64%

ZIPs with High Infrastructure Stress

High

Lead Pipe Risk

Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINSA infrastructure needs, EPA SDWIS violations, and EPA lead indicators.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $1,648

Flood $1,044/yr

Energy Code Gap $540/yr

Sea Level Rise $400/yr

Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).

Housing Age Distribution

48,231 housing units in Allen County

Pre-1940 24%

1940–1959 20%

1960–1979 31%

1980–1999 16%

2000+ 9%

Source: U.S. Census Bureau ACS B25034 (Year Structure Built).

Water Safety Affordability

How much it costs to fix water issues relative to home values in Allen County

$154K

Median Home Value

$667

Est. Remediation Cost

0.4%

of Home Value

Remediation as % of home value low burden

Modeled remediation costs in Allen County can be compared with the median property value; actual costs vary by property.

Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.

Health Outcomes vs National Average

CDC PLACES data for Allen County residents

Asthma 11.1% (US avg: 8.9%)

Diabetes 14.5% (US avg: 11%)

Obesity 39.7% (US avg: 32.4%)

Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.

Water systems mapped to Allen County ZIP codes

7 community water systems mapped to Allen County ZIP codes; EPA may list more systems serving the county.

Lima City
Serves ~65,619 people 2 violations

C
Delphos City
Serves ~7,101 people 1 violation

C
Bluffton Village
Serves ~4,125 people 1 violation

C
Elida Village
Serves ~4,109 people 3 violations

C
Cridersville Village Public Water System
Serves ~2,410 people 1 violation
Spencerville Village
Serves ~2,261 people

C

Show all 7 water systems

Ottoville Village Public Water System
Serves ~976 people

C

Systems with the most violations in Allen County

5 water systems with violations in EPA records.

Elida Village
Serves ~4,109 people 3 violations

C
Lima City
Serves ~65,619 people 2 violations

C
Delphos City
Serves ~7,101 people 1 violation

C
Bluffton Village
Serves ~4,125 people 1 violation

C
Cridersville Village Public Water System
Serves ~2,410 people 1 violation

All ZIP Codes in Allen County

14 ZIP codes tracked in Allen County.

#	ZIP Code	City	Safety Score	Grade	Violations	Home Value
1	45817	Bluffton	66	C	1	$195K
2	45833	Delphos	66	C	1	$156K
3	45801	Lima	65	C	5 (2 health)	$112K
4	45804	Lima	65	C	2 (2 health)	$96K
5	45805	Lima	65	C	5 (2 health)	$154K
6	45807	Lima	64	C	6 (2 health)	$193K
7	45802	Lima	—	—		—
8	45806	Lima	—	—	3 (2 health)	$190K
9	45808	Beaverdam	—	—		$100K
10	45809	Gomer	—	—		$99K
11	45820	Cairo	—	—		$108K
12	45850	Harrod	—	—		$178K
13	45854	Lafayette	—	—		$122K
14	45887	Spencerville	—	—	0	$185K

Recommended Buyer Guides for Allen County

The guides listed here are chosen from this county's data, and the short note beside each one says why it made the list.

Best Lead Paint Test Kits — 75% of homes built before 1980
Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Best Sump Pumps — Flood is the top compound risk factor
Best Mold Test Kits — Flood-driven moisture and mold risk

Deep Dive Reports

Detailed analysis for Allen County, Ohio

💧

Water Quality

EPA violations, contaminant trends, and enforcement actions across the county

⚠️

Lead Risk

Lead exposure scores, housing age analysis, and LCR testing trends

🏠

Home Affordability

Remediation costs vs. home values, equity trap analysis by ZIP

$667 avg remediation

🌊

Flood Risk

NFIP claim history and recorded rated-zone context across the county, plus FEMA property-map guidance

Overview

Allen County in Ohio covers 14 tracked ZIP records with an average Home Safety Score of C (65/100) across 6 scored records.

7 of 8 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 2 health-based violations appear in the available health breakdown.

← Back to Ohio Home Safety Profile

Data Sources

Water quality: EPA Safe Drinking Water Information System (SDWIS)
PFAS screening: EPA UCMR 5
Radon zones: EPA Map of Radon Zones
Air quality: EPA AirData annual AQI
Home values: U.S. Census Bureau ACS (median estimates by ZCTA)

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Frequently Asked Questions

Is water safe in Allen County?

Allen County receives a grade of C. Some ZIP codes have recorded violations and residents in affected areas may want to test their water.

How many water systems serve Allen County?

We map 7 public water systems to 14 ZIP codes in our data for Allen County. EPA may list more systems serving the county, so this is not a full count.

What is the biggest environmental risk in Allen County?

In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Allen County is flood. Across all modeled risk factors, the estimated average additional annual cost is $1,648 per homeowner; actual costs vary by home.

How old are homes in Allen County?

The median home build year in Allen County is 1961. 75% of homes were built before 1980; homes built before 1978 may contain lead-based paint, and older homes may have older plumbing materials.

How does Allen County compare to Ohio?

Allen County has an average Home Safety Score of 65/100 under model 4.0.0, which is at or above the Ohio state average of 60/100.

Explore More

Flood Risk Rankings 2026 Lead Risk Rankings 2026 Water Safety Rankings 2026 Home Safety Rankings 2026 Water Filter Matcher Find the right filter for your water Home Safety Score Full safety breakdown by ZIP

Ohio State Overview →