Yankton County, South Dakota
SDWIS compliance plate
Sheet SD135 · Yankton County 9 sys · 551 viol · #1909/3254
VIOL-SEVERE · HEALTH-MID · RANK-MID · PHOTO-FINISH · PFAS-CLEAN · SRC-SW · SYS-TINY · BOOK-FULL
- VIOL-SEVERE 100.0% flagged
- HEALTH-MID 20.5% health
- RANK-MID #1909/3254
- PHOTO-FINISH ±0.0 pp
- PFAS-CLEAN 0.0% detect
- SRC-SW SW lead 67%
- SYS-TINY 9 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Brown County (+ 0 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Yankton County ranks #1,909 of 3,254 counties by people served, and #14 of 65 counties in South Dakota. See methodology · corpus placement.
Yankton County standing, mid-flagged corpus third
Flagged-system rate 100.0% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 20.5% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #1,909 of 3,254 · #14 of 65 in South Dakota.
Flagged-rate neighbourhood around Yankton County
Lowest/highest poles plus in-state counties nearest Yankton County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| Yankton | 15,411 | 91 | Clean |
| Gayville | 392 | 42 | - |
| 3 Sons RV Park | 339 | 3 | - |
| Mission Hill | 190 | 50 | - |
| East Winds Court, Inc. | 180 | 26 | - |
| Volin | 161 | 20 | - |
| Lesterville | 115 | 101 | - |
| Timberland Park | 95 | 180 | - |
| Utica | 65 | 38 | - |
Compare beyond South Dakota
Mid-flagged peers for Yankton County
Cross-state counties nearest Yankton County on flagged-system share (100.0%) and cumulative violation count (551). 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.
Similar violation load
Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).
Read our methodology · Check your water system - how this data is sourced, computed, and verified.
Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.