COUNTY REPORT NE

Otoe County, Nebraska

10 ZIP codes · Avg score 61/100 · Grade C · Updated 2026-06-03

Safe water is the norm for most of Otoe County's 10 ZIP codes — but a notable subset have documented violations that push the grade to the middle tier.

How Otoe County Compares

Otoe County61/100
Nebraska avg65/100
National avg68/100

How Otoe County Compares

C
County Grade
61/100
Avg Safety Score
10
ZIP Codes
12
Water Systems

Otoe County scores 4 points below the Nebraska state average (65/100) and 7 points below the national average (68/100).

Data: EPA SDWIS Last verified: 2026-06-03

C
County Grade
61
Avg Safety Score
10
ZIP Codes
Best ZIP: 68344 (70/100)
Lowest ZIP: 68324 (33/100)
$168K
Median Home Value
$1,920
Avg Remediation (115% of home value)

ZIP Code Risk Map

Water Quality Map: Otoe County, Nebraska

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: 13.4 (asthma 9.2%, diabetes 11.9%)

Estimated additional annual cost per homeowner: $903, driven primarily by energy_code_gap

Infrastructure: 0.434% avg pipe failure probability, 40% of ZIPs at high risk

74.7% of homes built before 1978 (lead paint era)

Violation History (2022–2025)

→ Stable trend

EPA violation counts by year across Otoe County water systems. Health-based shown in red, total in blue.

2022
3 (3 health)
2023
4 (4 health)
2024
4 (4 health)
2025
4 (4 health)

Peak year: 2023 with 4 violations. Past 5 years: 15 total (15 health-based).

Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.

County Health Indicators vs National Average

Asthma 9.2% (national: 8.9%)
Diabetes 11.9% (national: 10.5%)
Obesity 40.7% (national: 32.4%)

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

Infrastructure Overview

1957
Median Build Year
74.7%
Pre-1978 Housing
43%
Pipe Failure Probability
40%
ZIPs at High Infra Risk
High
Lead Pipe Risk

Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $903

Energy Code Gap $513/yr
Water / Lead $250/yr
Flood $140/yr

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

Housing Age Distribution

6,718 housing units in Otoe County

Pre-1940 34%
1940–1959 13%
1960–1979 21%
1980–1999 14%
2000+ 17%

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 Otoe County

$168K
Median Home Value
$1,920
Est. Remediation Cost
1.1%
of Home Value
Remediation as % of home value low burden

Remediation costs are relatively manageable for most homeowners in Otoe County, representing a small fraction of property value.

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 Otoe County residents

Asthma 9.2% (US avg: 8.9%)
Diabetes 11.9% (US avg: 11%)
Obesity 40.7% (US avg: 32.4%)

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

Water Systems with Most Violations

Top 5 systems in Otoe County ranked by EPA violation count.

# Water System Population Violations
1 Burr, Village of 57 20
2 Unadilla, Village of 311 2
3 Dunbar, Village of 195 1
4 City of Nebraska City, 7,414 1
5 Otoe Company Rwd 1 714 1

12 total water systems serve Otoe County.

All ZIP Codes in Otoe County

10 ZIP codes tracked in Otoe County.

# ZIP Code City Safety Score Grade Violations Home Value
1 68344 Douglas 70 B 0 $168K
2 68346 Dunbar 70 B 1 $116K
3 68417 Otoe 70 B 0
4 68446 Syracuse 70 B 0 $228K
5 68418 Palmyra 66 C 0 $199K
6 68448 Talmage 66 C 0 $106K
7 68454 Unadilla 65 C 2 $179K
8 68410 Nebraska City 63 C 1 $167K
9 68382 Lorton 40 D 0 $57K
10 68324 Burr 33 F 20 (19 health)

Recommended Buyer Guides for Otoe County

If FEMA records flag flood-top-risk status or EPA samples show PFAS exceedances, the matching logic lifts emergency-water and PFAS-rated filtration into the recommendations — federal data drives the order, not retailer arrangements.

Overview

Otoe County in Nebraska covers 10 ZIP codes with an average Home Safety Score of C (61/100).

4 of 10 ZIP codes have recorded EPA violations. 19 health-based violations have been documented.

← Back to Nebraska water quality report

Data Sources

Updated daily.

Frequently Asked Questions

Is water safe in Otoe County?
Otoe 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 Otoe County?
Otoe County is served by 12 public water systems that supply drinking water to residents across 10 ZIP codes.
What is the biggest environmental risk in Otoe County?
The primary environmental risk factor in Otoe County is energy_code_gap. This contributes to an estimated additional annual cost of $903 per homeowner.
How old are homes in Otoe County?
The median home build year in Otoe County is 1957. 74.7% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.
How does Otoe County compare to Nebraska?
Otoe County has an average water safety score of 61/100, which is below the Nebraska state average of 65/100.

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