COUNTY REPORT NY

Tompkins County, New York

15 ZIP codes · Avg score 65/100 · Grade C · Updated

ZipCheckup grade for Tompkins County: C.

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

Across Tompkins County, EPA compliance data for 15 ZIP codes sits at a moderate level - not alarming, but not uniformly clean either.

How Tompkins County Compares

Tompkins County65/100
New York avg84/100
National avg73/100

How Tompkins County Compares

C
County Grade
65/100
Avg Safety Score
15
ZIP Codes
10
Water Systems

Tompkins County scores 19 points below the New York state average (84/100) 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 Last verified:

C
County Grade
65
Avg Safety Score
15
ZIP Codes
Best ZIP: 14850 (65/100)
Lowest ZIP: 14850 (65/100)
$229K
Median Home Value
$2,347
Avg Remediation (102% of home value)

ZIP Code Risk Map

Water Quality Map: Tompkins County, New York

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: 9.7 (asthma 10.5%, diabetes 7.6%)

Estimated additional annual cost per homeowner: $1,623, driven primarily by flood

72.6% of homes built before 1978 (lead paint era)

Violation History (2024–2025)

→ Stable trend

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

2024
1 (1 health)
2025
3 (3 health)

Peak year: 2025 with 3 violations. Past 5 years: 4 total (4 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 10.5% (national: 8.9%)
Diabetes 7.6% (national: 10.5%)
Obesity 24.6% (national: 32.4%)

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

Infrastructure Overview

1974
Median Build Year
72.6%
Pre-1978 Housing
52/100
Infrastructure Stress Indicator
100%
ZIPs with High Infrastructure Stress
Low
Lead Pipe Risk

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

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $1,623

Flood $873/yr
Energy Code Gap $563/yr
Water / Lead $254/yr

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

Housing Age Distribution

47,037 housing units in Tompkins County

Pre-1940 25%
1940–1959 11%
1960–1979 22%
1980–1999 25%
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 Tompkins County

$229K
Median Home Value
$2,347
Est. Remediation Cost
1.0%
of Home Value
Remediation as % of home value low burden

Remediation costs are relatively manageable for most homeowners in Tompkins 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 Tompkins County residents

Asthma 10.5% (US avg: 8.9%)
Diabetes 7.6% (US avg: 11%)
Obesity 24.6% (US avg: 32.4%)

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

Water systems serving Tompkins County

8 community water systems serving Tompkins County.

Show all 8 water systems

10 total water systems serve Tompkins County.

Systems with the most violations in Tompkins County

5 water systems with recorded EPA violations.

All ZIP Codes in Tompkins County

15 ZIP codes tracked in Tompkins County.

# ZIP Code City Safety Score Grade Violations Home Value
1 14850 Ithaca 65 C 5 $335K
2 13053 Dryden 0 $229K
3 13062 Etna $253K
4 13068 Freeville 1 $208K
5 13073 Groton 1 $168K
6 13102 Mc Lean
7 14817 Brooktondale $219K
8 14851 Ithaca
9 14852 Ithaca
10 14853 Ithaca 1
11 14854 Jacksonville
12 14867 Newfield 2 $164K
13 14881 Slaterville Springs
14 14882 Lansing $275K
15 14886 Trumansburg 4 $244K

Recommended Buyer Guides for Tompkins County

Independent picks. EPA-grounded. Matched here.

Overview

Tompkins County in New York covers 15 tracked ZIP records with an average Home Safety Score of C (65/100) across 1 scored records.

6 of 7 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. The available record reports no health-based violations for this measured scope.

← Back to New York Home Safety Profile

Data Sources

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

Frequently Asked Questions

Is water safe in Tompkins County?
Tompkins 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 Tompkins County?
Tompkins County is served by 10 public water systems that supply drinking water to residents across 15 ZIP codes.
What is the biggest environmental risk in Tompkins County?
The primary environmental risk factor in Tompkins County is flood. This contributes to an estimated additional annual cost of $1,623 per homeowner.
How old are homes in Tompkins County?
The median home build year in Tompkins County is 1974. 72.6% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.
How does Tompkins County compare to New York?
Tompkins County has an average Home Safety Score of 65/100 under model 4.0.0, which is below the New York state average of 84/100.

How to cite this page

APA ZipCheckup. (2026). Tompkins County, NY: HSS 65/100; 8 Violations. https://zipcheckup.com/county/new-york/tompkins/
BibTeX
@misc{zipcheckup-county-new-york-tompkins,
  author = {{ZipCheckup}},
  title  = {{Tompkins County, NY: HSS 65/100; 8 Violations}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/new-york/tompkins/}
}

Page version: August 2026.

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