COUNTY REPORT IL

Sangamon County, Illinois

57 ZIP codes · Avg score 63/100 · Grade C

ZipCheckup grade for Sangamon County: C.

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

ZipCheckup gives Sangamon County a C; the county page lists 57 ZIP codes, each with its own report.

How Sangamon County Compares

Sangamon County63/100
Illinois avg68/100
National avg73/100

How Sangamon County Compares

C
County Grade
63/100
Avg Safety Score
57
ZIP Codes
20
Water Systems

Sangamon County scores 5 points below the Illinois state average (68/100) and 10 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

C
County Grade
63
Avg Safety Score
57
ZIP Codes
Best ZIP: 62536 (67/100)
Lowest ZIP: 62712 (50/100)
$172K
Median Home Value
$425
Avg Remediation (0.25% of home value)

ZIP Code Risk Map

Water Quality Map: Sangamon County, Illinois

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: 13.5 (asthma 10.5%, diabetes 11.9%)

Modeled additional annual cost estimate per homeowner: $471, largest modeled factor: Flood

County Health Indicators vs National Average

Asthma 10.5% (national: 8.9%)
Diabetes 11.9% (national: 10.5%)
Obesity 39.6% (national: 32.4%)

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

Infrastructure Overview

37/100
Infrastructure Stress Indicator
30%
ZIPs with High Infrastructure Stress

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: $471

Flood $657/yr
Energy Code Gap $468/yr
Water / Lead $61/yr

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

Water Safety Affordability

How much it costs to fix water issues relative to home values in Sangamon County

$172K
Median Home Value
$425
Est. Remediation Cost
0.2%
of Home Value
Remediation as % of home value low burden

Modeled remediation costs in Sangamon 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 Sangamon County residents

Asthma 10.5% (US avg: 8.9%)
Diabetes 11.9% (US avg: 11%)
Obesity 39.6% (US avg: 32.4%)

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

Water systems mapped to Sangamon County ZIP codes

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

Show all 8 water systems
  • Riverton
    Serves ~4,279 people 3 violations
    C
  • Rochester
    Serves ~3,856 people 1 violation
    D

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

Systems with the most violations in Sangamon County

5 water systems with violations in EPA records.

All ZIP Codes in Sangamon County

57 ZIP codes tracked in Sangamon County.

# ZIP Code City Safety Score Grade Violations Home Value
1 62536 Glenarm 67 C 0 $246K
2 62661 Loami 67 C 0 $161K
3 62625 Cantrall 66 C 2 $278K
4 62629 Chatham 66 C 3 $232K
5 62670 New Berlin 66 C 3 $188K
6 62677 Pleasant Plains 66 C 3 $211K
7 62693 Williamsville 66 C 2 $194K
8 62701 Springfield 66 C 3 —
9 62561 Riverton 65 C 5 $156K
10 62615 Auburn 65 C 5 $154K
11 62684 Sherman 65 C 5 $292K
12 62703 Springfield 65 C 5 $93K
13 62704 Springfield 62 C 15 $167K
14 62711 Springfield 62 C 15 $299K
15 62707 Springfield 58 C 20 (1 health) $164K
16 62563 Rochester 53 D 72 $256K
17 62712 Springfield 50 D 80 (4 health) $244K
18 62515 Buffalo — — $154K
19 62520 Dawson — — 4 $225K
20 62530 Divernon — — 4 $145K
21 62539 Illiopolis — — 1 $108K
22 62545 Mechanicsburg — — $160K
23 62558 Pawnee — — 4 $176K
24 62662 Lowder — — —
25 62689 Thayer — — $86K
26 62702 Springfield — — 25 (1 health) $102K
27 62705 Springfield — — —
28 62706 Springfield — — 3 —
29 62708 Springfield — — —
30 62713 Springfield — — —
31 62715 Springfield — — —
32 62716 Springfield — — —
33 62719 Springfield — — —
34 62721 Springfield — — —
35 62722 Springfield — — —
36 62723 Springfield — — —
37 62726 Springfield — — —
38 62736 Springfield — — —
39 62739 Springfield — — —
40 62746 Springfield — — —
41 62756 Springfield — — —
42 62757 Springfield — — —
43 62761 Springfield — — —
44 62762 Springfield — — —
45 62763 Springfield — — —
46 62764 Springfield — — —
47 62765 Springfield — — —
48 62766 Springfield — — —
49 62767 Springfield — — —
50 62769 Springfield — — —
51 62776 Springfield — — —
52 62777 Springfield — — —
53 62781 Springfield — — —
54 62786 Springfield — — —
55 62791 Springfield — — —
56 62794 Springfield — — —
57 62796 Springfield — — —

Recommended Buyer Guides for Sangamon County

Which guides appear depends on what the county data show.

Overview

Sangamon County in Illinois covers 57 tracked ZIP records with an average Home Safety Score of C (63/100) across 17 scored records.

21 of 23 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 5 health-based violations appear in the available health breakdown.

← Back to Illinois 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 Sangamon County?
Sangamon 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 Sangamon County?
We map 20 public water systems to 57 ZIP codes in our data for Sangamon County. EPA may list more systems serving the county, so this is not a full count.
What is the biggest environmental risk in Sangamon County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Sangamon County is flood. Across all modeled risk factors, the estimated average additional annual cost is $471 per homeowner; actual costs vary by home.
How does Sangamon County compare to Illinois?
Sangamon County has an average Home Safety Score of 63/100 under model 4.0.0, which is below the Illinois state average of 68/100.

How to cite this page

APA ZipCheckup. (2026). Sangamon County, IL: HSS 63/100; 5 Health Violations. https://zipcheckup.com/county/illinois/sangamon/
BibTeX
@misc{zipcheckup-county-illinois-sangamon,
  author = {{ZipCheckup}},
  title  = {{Sangamon County, IL: HSS 63/100; 5 Health Violations}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/illinois/sangamon/}
}

Page version: October 2026.

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