How many water violations are in Marion County?

Marion County has 12,979 total drinking water violations across 491 water systems, of which 850 are health-based violations. 95.7% of systems have at least one violation.

How many people get water from Marion County systems?

Water systems in Marion County serve approximately 291,422 people through 491 public water systems.

Has PFAS been detected in Marion County water?

Under EPA UCMR5, 7 of 9 tested systems in Marion County had at least one PFAS detection (77.8% of the UCMR5-tested subset - not of all 491 SDWIS systems).

What types of water sources supply Marion County?

Water systems in Marion County use GW (490 systems), SW (1 systems) as their primary water sources.

Are health-based violations serious?

Health-based violations indicate that drinking water exceeded Maximum Contaminant Levels (MCLs) set by the EPA or failed treatment technique requirements. 6.5% of Marion County's violations are health-based. Among counties with any SDWIS violations, this extract puts Marion County in the lower health-based share band. Not all violations indicate immediate health risk, but they require corrective action.

Where does Marion County sit among U.S. counties for water-system population?

According to EPA SDWIS county population served used on /counties, Marion County ranks #244 of 3,254 counties by people served, and #21 of 67 counties in Florida. Ordinals use the same total_population DESC sort as the counties directory. See /methodology#corpus-placement.

Counties → Florida

Marion County, Florida

Compiled by PlainWater · May 15, 2026

SDWIS compliance plate

Sheet FL083 · Marion County 491 sys · 12,979 viol · #244/3254

VIOL-SEVERE · HEALTH-LOW · RANK-TOP · PHOTO-FINISH · PFAS-HIGH · SRC-GW · SYS-LARGE · BOOK-FULL

VIOL-SEVERE 95.7% flagged
HEALTH-LOW 6.5% health
RANK-TOP #244/3254
PHOTO-FINISH ±0.1 pp
PFAS-HIGH 77.8% detect
SRC-GW GW lead 100%
SYS-LARGE 491 systems
BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Highlands County (+ 0.1 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Marion County ranks #244 of 3,254 counties by people served, and #21 of 67 counties in Florida. See methodology · corpus placement.

Marion County standing, mid-flagged corpus third

Flagged-system rate 95.7% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 6.5% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 77.8% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #244 of 3,254 · #21 of 67 in Florida.

Water Systems

System Name	Population	Violations	PFAS
Ocala, City of (2 Wtps)	66,176	43	Detected
West Side Consolidated	54,542	20	Detected
East Side Consolidated	40,251	16	Detected
On Top of the World	22,383	10	Detected
Belleview, City of (3 Wps)	9,358	86	Detected
Spruce Creek North	7,467	18	Detected
Ashley Farms	4,784	5	-
Lowell Correctional Institution Annex	2,974	87	-
Marion Correctional Institution	2,700	187	-
Rolling Greens Village	2,498	61	-
Ocala Oaks Subdivision (2 Wps)	2,202	53	-
Ocala Palms (Consec.)	2,015	14	-
Dunnellon, City of (2 Wps)	1,922	19	-
Golden Hills Golf ; Turf WTP	1,859	8	-
Rainbow Springs Cc Estates	1,826	15	-
Rainbow Lakes Estates	1,823	42	Clean
Woods and Meadows	1,736	25	-
North Marion High School	1,530	29	-
Lake Weir Middle School	1,469	31	-
Sun Ray Estates	1,460	100	-
Spruce Creek Preserve	1,456	8	-
Fort McCoy Middle School	1,273	41	-
Dunnellon High/Elem School	1,256	54	-
Tradewinds Village	1,218	50	-
Bahia Oaks (Consec.)	1,200	27	-
Fore Acres	1,191	38	-
Greenfields/Indian Pines	1,144	28	-
Little Lake Weir Subdivision	1,138	60	-
Ocala Heights S/D	1,045	51	Detected
Cedar Hills	1,013	37	-
Marion Landing	1,000	23	-
Ocklawaha Water Works (2 Wtps)	965	86	-
North Marion Middle School	935	40	-
Silver Springs Woods/Village	852	13	-
Ocala Springs Elementary	851	43	Clean
East Marion Elementary School	846	44	-
Belleview Santos Elem. School	837	34	-
Harbour View Elementary	785	26	-
Belleair Subdivision (Consec)	763	62	-
Shady Hill Elementary School	745	28	-
HI-Cliff Estates/Sleepy Hollow	721	35	-
Ocala RV Camp Resort	700	12	-
Sandy Acres	678	82	-
Ocala East Villas	608	29	-
Winding Waters	608	19	-
Oak Bend MHP	600	74	-
Romeo Elementary School	600	10	-
Hilltop at Lake Weir	595	31	-
Fore Oaks Estates	580	48	-
Landfair Subdivision	580	56	-

Compare beyond Florida

Mid-flagged peers for Marion County

Cross-state counties nearest Marion County on flagged-system share (95.7%) and cumulative violation count (12,979). 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

Read our methodology · Check your water system - how this data is sourced, computed, and verified.

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

Compiled by PlainWater, Drinking Water Quality Editorial Process · May 15, 2026

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.