CITY REPORT TX

Coolidge, TX Water Safety: 66/100 (2026)

1 ZIP code · 8 water systems · Updated 2026-06-03

Although much of Coolidge meets baseline drinking water standards, some TX-tracked service areas show violations that merit a closer look — particularly for older housing stock.

How Coolidge Compares

Coolidge66/100
Texas avg82/100
National avg67/100

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

1
ZIP Codes
8
Water Systems
0
ZIPs with Violations
C · 66
Avg Safety Score
Zone 3
Radon Risk (Low)
$146K
Median Home Value

Key Facts for Coolidge Residents

  • Homes built before 1986: 53% — older plumbing may contain lead solder.
  • CDC health risk index: 15.24 — above typical levels.

Coolidge's Water Providers

Water service in Coolidge, TX is split across 3 utilities out of 8 tracked federally, each operating its own infrastructure and compliance record.

City of Mexia
Serves ~7,459 people
66
/100
66
/100
Post Oak Special Utility District
Serves ~3,117 people
66
/100

Overview

We track water quality and home safety data for 1 ZIP code in Coolidge, Texas (population ~1,382), covering 8 community water systems serving approximately 24,504 people region-wide.

No EPA violations recorded across any ZIP codes in Coolidge — an excellent indicator of water quality.

Home Safety Score

Average Home Safety Score for Coolidge: C (66/100)

The score combines three factors:

Factor What It Measures
Water Quality EPA violations and compliance history
Lead Levels 90th percentile lead concentration vs EPA action level
Radon Risk EPA radon zone classification

Water Sources

Coolidge water systems draw from: Groundwater.

Lead & Copper

  • Lead data: not yet available for Coolidge
  • 0 ZIP codes exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 3 (Low Risk)

Areas with No Violations

ZIP Code Safety Score System Population
76635 C City of Mexia 7,459

All ZIP Codes in Coolidge

Data Sources

Updated daily.

Coolidge Community Health Snapshot

10.5%
Asthma (US: 9.8%)
16.1%
Diabetes (US: 10.4%)
18.1%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 10.5% ↑
Diabetes 16.1% ↑
Mental Health 18.1% ↑

Vertical line = national average. Above national · Below national

Coolidge Infrastructure Age

1985
Median Build Year
53%
Built Before 1986
26%
Built Before 1970
Copper
Likely Pipe Material

With 53% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Two dates define the high-risk tiers of residential plumbing from a lead standpoint: 1970, before which lead pipes were commonly installed for service connections, and 1986, before which lead solder was standard in copper plumbing. A median build year of 1985 places Coolidge's housing distribution well within that older risk zone. The bar chart above breaks down how much of the stock falls into each era — and the pre-1986 share alone represents more than half the residential inventory, making plumbing-era risk a defining characteristic of the local water safety picture.

1985
Median Year Built
53%
Pre-1986 (Lead Paint Risk)
26%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (26%) 1970–1986 (27%) Post-1986 (47%)

Over half of homes in Coolidge were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Coolidge: Lead Risk & Vulnerable Populations

53%
Homes Built Before 1986

Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

Wherever 53% of local housing was built before solder rules changed — as is the case in Coolidge — a faucet-level sample closes the gap that aggregate utility data cannot.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

What You Can Do in Coolidge

  1. Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
  2. Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
  3. Check your home's plumbing. With 53% of homes built before 1986, lead solder is a real possibility.

Frequently Asked Questions

Is the water safe to drink in Coolidge, TX?
Coolidge has an average water safety score of 66/100 (Grade C). No EPA violations on record. Check individual ZIP code reports for details specific to your neighborhood.
How does Coolidge compare to Texas average?
Coolidge has an average water safety score of 66/100, which is below the Texas state average of 82/100.
How many water systems serve Coolidge?
Coolidge is served by 8 public water systems across 1 ZIP code, serving approximately 1,382 people.
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