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County profile · EPA SDWIS + UCMR5

Caldwell County, North Carolina

29 SDWIS-listed public water systems serve 73,385 people in Caldwell County. Violation rates use that full inventory; PFAS rates use only the UCMR5-tested subset.

29
SDWIS water systems Middle third of counties
1,810
Total violations Middle third of counties
86.2%
SDWIS systems w/ a violation Lower third of counties
0.0%
UCMR5 PFAS rate (5 tested) Lower third of counties with tests

SDWIS compliance plate

Sheet NC027 · Caldwell County 29 sys · 1,810 viol · #713/3254

VIOL-SEVERE · HEALTH-LOW · RANK-UPPER · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-SMALL · BOOK-FULL

  • VIOL-SEVERE 86.2% flagged
  • HEALTH-LOW 2.7% health
  • RANK-UPPER #713/3254
  • PHOTO-FINISH ±0.5 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 69%
  • SYS-SMALL 29 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Jackson County ( -0.5 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Caldwell County ranks #713 of 3,254 counties by people served, and #32 of 100 counties in North Carolina. See methodology · corpus placement.

Caldwell County standing, lower-flagged corpus third

Flagged-system rate 86.2% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 2.7% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #713 of 3,254 · #32 of 100 in North Carolina.

Flagged-rate neighbourhood around Caldwell County

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

0% 20% 40% 60% 80% 100% Gates · lowest Jackson · near Martin · near Tyrrell · highest 50% 85.2% 85.7% 85.7% 85.7% 86.2% 100%

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

Water Systems

Compare beyond North Carolina

Lower-flagged peers for Caldwell County

Cross-state counties nearest Caldwell County on flagged-system share (86.2%) and cumulative violation count (1,810). 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.