Lincoln County, Colorado
9 ZIP codes · Avg score 52/100 · Grade D · Updated 2026-06-03
While Lincoln County's situation varies by ZIP, its 9 ZIP codes collectively fall below the state average — addressing specific concerns starts with checking the system that serves a given address.
How Lincoln County Compares
How Lincoln County Compares
Lincoln County scores 8 points below the Colorado state average (60/100) and 16 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Lincoln County, Colorado
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.4 (asthma 11%, diabetes 10.4%)
Estimated additional annual cost per homeowner: $687, driven primarily by energy_code_gap
Infrastructure: 0.43% avg pipe failure probability, 63% of ZIPs at high risk
77% of homes built before 1978 (lead paint era)
Violation History (2024–2025)
→ Stable trendEPA violation counts by year across Lincoln County water systems. Health-based shown in red, total in blue.
Peak year: 2025 with 2 violations. Past 5 years: 3 total (3 health-based).
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
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: $687
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
3,001 housing units in Lincoln 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 Lincoln County
Remediation costs are relatively manageable for most homeowners in Lincoln 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 Lincoln 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 Lincoln County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | GENOA TOWN OF | 153 | 22 |
| 2 | Hugo Town of | 885 | 8 |
| 3 | Limon Town of | 5,080 | 6 |
| 4 | Limon Correctional Facility | 1,289 | 6 |
| 5 | Karval Water Users Inc. | 102 | 4 |
All ZIP Codes in Lincoln County
9 ZIP codes tracked in Lincoln County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 80828 | Limon | 67 | C | 3 | $233K |
| 2 | 80821 | Hugo | 65 | C | 8 (1 health) | $251K |
| 3 | 80823 | Karval | 64 | C | 4 | $179K |
| 4 | 80826 | Limon | 63 | C | 3 | — |
| 5 | 80818 | Genoa | 46 | D | 22 (1 health) | $214K |
| 6 | 80804 | Arriba | 40 | D | 0 | $147K |
| 7 | 80840 | U S A F Academy | 40 | D | 0 | — |
| 8 | 80841 | U S A F Academy | 40 | D | 0 | — |
| 9 | 80862 | Wild Horse | 40 | D | 0 | $279K |
Recommended Buyer Guides for Lincoln County
Methodologically, the recommendation order reflects severity in the federal record: contaminants flagged in EPA detection records for this county outrank generic water concerns, FEMA-confirmed hazard ratings shift emergency-related categories upward, and CDC lead-exposure markers govern when lead-test kits and certified filters appear at the top of the list.
- Best Lead Paint Test Kits — 77% of homes built before 1978
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Deep Dive Reports
Detailed analysis for Lincoln County, Colorado
Overview
Lincoln County in Colorado covers 9 ZIP codes with an average Home Safety Score of D (52/100).
5 of 9 ZIP codes have recorded EPA violations. 2 health-based violations have been documented.
← Back to Colorado 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.
What You Can Do
Lincoln County has a grade of D. Here are steps to protect your household.
Test your tap water
Order a certified lab test kit ($20-$50) to check for lead, bacteria, and other contaminants specific to your ZIP code.
Consider a certified water filter
NSF-certified filters can remove most common contaminants. Match the filter to your test results for best protection. Try our filter matcher
Contact your water utility
Request the latest Consumer Confidence Report (CCR) from your water provider. It details exactly what was found in your water supply.
Check for lead in your home
77% of homes in this county were built before 1978. Older plumbing and solder can leach lead into drinking water, especially in the morning.