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County profile · EPA SDWIS + UCMR5

Franklin County, Mississippi

14 SDWIS-listed public water systems serve 8,883 people in Franklin County. Violation rates use that full inventory; PFAS rates use only the UCMR5-tested subset.

14
SDWIS water systems Middle third of counties
2,777
Total violations Upper third of counties
78.6%
SDWIS systems w/ a violation Lower third of counties
-
UCMR5 PFAS (none tested) No UCMR5 tests

SDWIS compliance plate

Sheet MS037 · Franklin County 14 sys · 2,777 viol · #2449/3254

VIOL-SEVERE · HEALTH-LOW · RANK-LOWER · PHOTO-FINISH · PFAS-NONE · SRC-GW · SYS-SMALL · BOOK-MOST

  • VIOL-SEVERE 78.6% flagged
  • HEALTH-LOW 1.3% health
  • RANK-LOWER #2449/3254
  • PHOTO-FINISH ±0.8 pp
  • PFAS-NONE No UCMR5 set
  • SRC-GW GW lead 100%
  • SYS-SMALL 14 systems
  • BOOK-MOST 6/7 fields

Nearest flagged-rate peer: Wilkinson County ( -0.8 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Franklin County ranks #2,449 of 3,254 counties by people served, and #77 of 82 counties in Mississippi. See methodology · corpus placement.

Franklin County standing, lower-flagged corpus third

Flagged-system rate 78.6% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 1.3% is health-based share at or below the lower third (≤ 10.3%) . No UCMR5 tests in this extract for Franklin County . Population served ranks #2,449 of 3,254 · #77 of 82 in Mississippi.

Flagged-rate neighbourhood around Franklin County

Lowest/highest poles plus in-state counties nearest Franklin County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.

0% 20% 40% 60% 80% 100% Hinds · lowest Franklin · this county Walthall · near 75.9% 77.8% 78.6% 82.7% 83.3% 100%

Source: EPA SDWIS (county aggregates) As of 2026-05-15

Water Systems

Compare beyond Mississippi

Lower-flagged peers for Franklin County

Cross-state counties nearest Franklin County on flagged-system share (78.6%) and cumulative violation count (2,777). In-state neighbours stay on the compliance plate above.

Similar flagged-system rate

Nearest cross-state counties by % of SDWIS systems with at least one violation on record.

4 peers

Similar violation load

Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).

4 peers
Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.