COUNTY REPORT TX

Grimes County, Texas

7 ZIP codes · Home Safety Score unavailable · 0 of 7 tracked ZIP records scored

Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData

Unavailable
0 of 7 tracked ZIP records scored
7
ZIP Codes
$260K
Median Home Value
$880
Avg Remediation (0.34% of home value)

ZIP Code Risk Map

Water Quality Map: Grimes County, Texas

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: 14.1 (asthma 10.1%, diabetes 14.4%)

Modeled additional annual cost estimate per homeowner: $1,161, largest modeled factor: Flood

27% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 10.1% (national: 8.9%)
Diabetes 14.4% (national: 10.5%)
Obesity 37.1% (national: 32.4%)

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

Infrastructure Overview

1994
Median Build Year
27%
Pre-1980 Housing
36/100
Infrastructure Stress Indicator
50%
ZIPs with High Infrastructure Stress
Moderate
Lead Pipe Risk

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

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $1,161

Flood $520/yr
Sea Level Rise $400/yr
Wildfire $214/yr

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

Housing Age Distribution

12,179 housing units in Grimes County

Pre-1940 4%
1940–1959 9%
1960–1979 14%
1980–1999 37%
2000+ 35%

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 Grimes County

$260K
Median Home Value
$880
Est. Remediation Cost
0.3%
of Home Value
Remediation as % of home value low burden

Modeled remediation costs in Grimes County can be compared with the median property value; actual costs vary by property.

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 Grimes County residents

Asthma 10.1% (US avg: 8.9%)
Diabetes 14.4% (US avg: 11%)
Obesity 37.1% (US avg: 32.4%)

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

Water systems mapped to Grimes County ZIP codes

8 community water systems mapped to Grimes County ZIP codes; EPA may list more systems serving the county.

Show all 8 water systems

12 water systems mapped to Grimes County ZIP codes in our data; EPA may list more systems serving the county.

Systems with the most violations in Grimes County

5 water systems with violations in EPA records.

All ZIP Codes in Grimes County

7 ZIP codes tracked in Grimes County.

# ZIP Code City Safety Score Grade Violations Home Value
1 77363 Plantersville — — 61 (41 health) $345K
2 77830 Anderson — — 107 (43 health) $302K
3 77831 Bedias — — 54 (2 health) $182K
4 77861 Iola — — 47 (2 health) $260K
5 77868 Navasota — — 110 (56 health) $200K
6 77875 Roans Prairie — — —
7 77876 Shiro — — —

Recommended Buyer Guides for Grimes County

Selection follows a fixed set of rules applied to local records: signals such as PFAS detections, lead action-level exceedances on record, a large share of pre-1978 housing, EPA Radon Zone 1, or a top flood or wildfire risk each add a related guide, and when none applies, general water testing and filtration guides are shown instead.

Overview

Grimes County in Texas covers 7 tracked ZIP records. No Home Safety Score is published because the required model evidence is incomplete for every tracked record; missing evidence is not treated as zero.

5 of 5 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 58 health-based violations appear in the available health breakdown.

← Back to Texas Home Safety Profile

Data Sources

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

Frequently Asked Questions

How many water systems serve Grimes County?
We map 12 public water systems to 7 ZIP codes in our data for Grimes County. EPA may list more systems serving the county, so this is not a full count.
What is the biggest environmental risk in Grimes County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Grimes County is flood. Across all modeled risk factors, the estimated average additional annual cost is $1,161 per homeowner; actual costs vary by home.
How old are homes in Grimes County?
The median home build year in Grimes County is 1994. 27% of homes were built before 1980; homes built before 1978 may contain lead-based paint, and older homes may have older plumbing materials.

How to cite this page

APA ZipCheckup. (2026). Grimes County, Texas Home Safety Profile. https://zipcheckup.com/county/texas/grimes/
BibTeX
@misc{zipcheckup-county-texas-grimes,
  author = {{ZipCheckup}},
  title  = {{Grimes County, Texas Home Safety Profile}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/texas/grimes/}
}

Page version: October 2026.

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