Lancaster County, Nebraska
42 ZIP codes · Avg score 66/100 · Grade C · Updated 2026-06-03
Covering 42 ZIP codes, Lancaster County falls in the average tier for tap water safety — violations appear in a meaningful share of areas, and the data suggests quality depends heavily on which specific part of the county a household sits in.
How Lancaster County Compares
How Lancaster County Compares
Lancaster County scores 1 points above the Nebraska state average (65/100) and 2 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Lancaster County, Nebraska
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 11.3 (asthma 9.2%, diabetes 9.6%)
Estimated additional annual cost per homeowner: $640, driven primarily by energy_code_gap
Infrastructure: 0.297% avg pipe failure probability, 12% of ZIPs at high risk
49% of homes built before 1978 (lead paint era)
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $640
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
122,306 housing units in Lancaster County
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 Lancaster County
Remediation costs are relatively manageable for most homeowners in Lancaster 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 Lancaster County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 5 systems in Lancaster County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | LINCOLN, CITY OF | 296,000 | 29 |
| 2 | Contempo Mhp | 1,630 | 28 |
| 3 | Lancaster Company Sid 6 - Village of Emerald | 100 | 28 |
| 4 | Sky Ranch Acres | 95 | 28 |
| 5 | Big Sandy Home Owners Association | 85 | 28 |
21 total water systems serve Lancaster County.
All ZIP Codes in Lancaster County
42 ZIP codes tracked in Lancaster County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 68317 | Bennet | 70 | B | 0 | $275K |
| 2 | 68428 | Raymond | 70 | B | 0 | $398K |
| 3 | 68430 | Roca | 70 | B | 0 | $443K |
| 4 | 68501 | Lincoln | 70 | B | 1 | — |
| 5 | 68505 | Lincoln | 70 | B | 1 | $217K |
| 6 | 68507 | Lincoln | 70 | B | 1 | $215K |
| 7 | 68512 | Lincoln | 70 | B | 1 | $296K |
| 8 | 68520 | Lincoln | 70 | B | 1 | $456K |
| 9 | 68522 | Lincoln | 70 | B | 1 | $225K |
| 10 | 68523 | Lincoln | 70 | B | 1 | $502K |
| 11 | 68527 | Lincoln | 70 | B | 1 | $483K |
| 12 | 68528 | Lincoln | 70 | B | 1 | $244K |
| 13 | 68531 | Lincoln | 70 | B | 1 | $461K |
| 14 | 68339 | Denton | 69 | C | 0 | $410K |
| 15 | 68462 | Waverly | 69 | C | 1 (1 health) | $296K |
| 16 | 68336 | Davey | 66 | C | 0 | $350K |
| 17 | 68358 | Firth | 66 | C | 0 | $415K |
| 18 | 68368 | Hallam | 66 | C | 0 | $278K |
| 19 | 68402 | Malcolm | 66 | C | 0 | $431K |
| 20 | 68419 | Panama | 66 | C | 0 | $196K |
| 21 | 68509 | Lincoln | 66 | C | 1 | — |
| 22 | 68514 | Lincoln | 66 | C | 1 | $388K |
| 23 | 68517 | Lincoln | 66 | C | 1 | $496K |
| 24 | 68524 | Lincoln | 66 | C | 1 | $215K |
| 25 | 68526 | Lincoln | 66 | C | 1 | $425K |
| 26 | 68529 | Lincoln | 66 | C | 1 | — |
| 27 | 68532 | Lincoln | 66 | C | 1 | $554K |
| 28 | 68542 | Lincoln | 66 | C | 1 | — |
| 29 | 68544 | Lincoln | 66 | C | 1 | — |
| 30 | 68583 | Lincoln | 66 | C | 1 | — |
| 31 | 68588 | Lincoln | 66 | C | 1 | — |
| 32 | 68372 | Hickman | 65 | C | 0 | $336K |
| 33 | 68502 | Lincoln | 65 | C | 1 | $221K |
| 34 | 68503 | Lincoln | 65 | C | 1 | $159K |
| 35 | 68508 | Lincoln | 65 | C | 1 | $121K |
| 36 | 68510 | Lincoln | 65 | C | 1 | $221K |
| 37 | 68516 | Lincoln | 65 | C | 1 | $332K |
| 38 | 68521 | Lincoln | 65 | C | 1 | $236K |
| 39 | 68438 | Sprague | 64 | C | 0 | $189K |
| 40 | 68504 | Lincoln | 60 | C | 1 | $169K |
| 41 | 68404 | Martell | 53 | D | 0 | $294K |
| 42 | 68461 | Walton | 53 | D | 0 | $486K |
Recommended Buyer Guides for Lancaster County
Independent picks. EPA-grounded. Matched here.
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Deep Dive Reports
Detailed analysis for Lancaster County, Nebraska
Overview
Lancaster County in Nebraska covers 42 ZIP codes with an average Home Safety Score of C (66/100).
29 of 42 ZIP codes have recorded EPA violations. 1 health-based violation have been documented.
← Back to Nebraska water quality report
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Updated daily.