Off-Grid in Marion County, Florida.
29.21° N · 82.06° W · pop. 375,908 · seat: Ocala
Verdict
Workable
for off-grid use
The honest take
Marion County is a workable but not natural off-grid destination. The fundamentals are mixed: solar is strong (Ocala's annual GHI is 5.53 kWh/m²/day per NREL-derived data, well above the ~4.5 national average), water is excellent (the Floridan Aquifer is one of the most productive in the country, with typical residential wells in the 50–150 ft range), and there is almost no winter to design around. But two structural facts work against off-grid here. First, land is expensive — Land.com's all-parcel average runs $54,000+/acre (skewed by small and horse parcels; large rural acreage is closer to $8,000–$20,000/acre, still well above western off-grid counties). Second, the county restricts RV-as-residence: under Land Development Code §4.3.6 you can't live in an RV on private land outside a licensed RV park. Temporary occupancy is narrow — a self-contained RV may be occupied as a guest up to 21 days per 60-day period in residential zoning (60 days per 365 in agricultural) via a Temporary Use Permit, and a travel trailer may serve as a temporary residence only during active construction with a building permit (max six months). The Florida Building Code applies county-wide, so going off-grid here means a permitted dwelling, not a stealth camper. If your goal is year-round off-grid with the lowest possible friction, this is not the county. If your goal is rural acreage with strong solar and reliable water, it is.
Why Marion County earns this verdict
- Solar is strong for Florida: Ocala's annual GHI is 5.53 kWh/m²/day (NREL-derived), well above the ~4.5 national average.
- The Floridan Aquifer sits beneath the entire county and is one of the most productive in the US; residential wells typically hit productive water at 50–150 ft.
- RV-as-residence is restricted (Land Development Code §4.3.6): not allowed on private land outside licensed RV parks; temporary guest occupancy is capped at 21 days/60 (residential) or 60 days/365 (agricultural) via a Temporary Use Permit; during-construction use needs an active building permit (max six months).
- Florida Building Code applies county-wide — no casual "park the camper" path, and structures must meet hurricane wind-load requirements.
- Land is expensive by off-grid standards: even large rural acreage runs ~$8,000–$20,000/acre, an order of magnitude above western off-grid counties.
Marion County by the numbers
- Solar (NREL-derived)
- 5.53 kWh/m²/day annual GHI — strong for Florida
- Aquifer
- Floridan Aquifer System — county-wide, highly productive
- Well depth (typical residential)
- 50–150 ft
- Annual rainfall
- ~50–55 in/yr (Cfa humid subtropical)
- Climate class
- Cfa, mean annual 70.6°F
- Building code
- Florida Building Code (hurricane wind-load applies)
- RV-as-residence
- Not allowed outside RV parks; temp guest 21 days/60 (residential), 60/365 (ag); construction-only ≤6 mo (LDC §4.3.6)
- Land price
- Rural acreage ~$8K–$20K/acre; all-parcel list avg $54,729 (Land.com, skewed by small lots)
What you'll spend
Raw land (5–20 ac, rural)
$8,000–$20,000 / acre
· Far above western off-grid counties
Off-grid solar (5kW)
$15,000–$25,000
· Strong resource — system can be sized modestly
Drilled well + pump
$4,000–$10,000
· Floridan is shallow and productive
Septic system
$6,000–$15,000
· Standard tank/leach; perc test required
Power grid extension (if not full off-grid)
$5,000–$25,000
· Distance-dependent
Total realistic baseline
$80,000–$200,000
· Land + power + water + septic + permit
What to verify before you buy in Marion County
- RV living is the #1 thing to know: Land Development Code §4.3.6 doesn't allow RV-as-residence on private land outside a licensed RV park. Temporary occupancy is capped (21 days/60 residential, 60/365 agricultural, via a Temporary Use Permit; during-construction needs a building permit, ≤6 months). Budget for a permitted dwelling, not a camper.
- Florida Building Code applies, including wind-load (hurricane) requirements. Any structure has to be spec'd for high-wind loads.
- The Floridan Aquifer is productive, but Florida regulates it through Water Management Districts; a well permit is required and per-usage caps can apply.
- Land cost means the typical "off-grid starter" 10-acre rural parcel is ~$80K–$200K before power, water, and septic.
- Wildfire risk in Ocala National Forest boundary areas is real; insurance is harder and more expensive in WUI zones.
- Flood zones matter: anywhere near the Withlacoochee River, Rainbow River, or Ocala NF has floodplain designations; check the FEMA FIRM before purchase.
- Marion County has 2,318 active land listings on LandWatch (Jun 2026) — the market is liquid for both buying and reselling later.
- Check the parcel's Land Development Code zoning designation (A-1, A-2, etc.) for what's actually permitted before assuming an off-grid use.
If this isn't the right fit, look at
Costilla County, CO
The canonical US off-grid county. 5.5+ kWh/m²/day solar, $500–$3,000/acre land, RV-residency ordinance on the books. Harsh winters, but if off-grid is the goal this is the standard.
Apache County, AZ
Arizona's canonical off-grid county. 5.5–6.0 kWh/m²/day, $1,000–$5,000/acre, permits RV residency outside incorporated areas. Water is the wildcard.
Cochise County, AZ
Strong solar, cheap high-desert land, owner-finance market. Less rain than FL but a real off-grid destination.
Common questions
Is Marion County a good fit for off-grid use?
Marion County is a workable but not natural off-grid destination. The fundamentals are mixed: solar is strong (Ocala's annual GHI is 5.
What's the solar in Marion County?
5.53 kWh/m²/day annual GHI — strong for Florida
What's the aquifer in Marion County?
Floridan Aquifer System — county-wide, highly productive
What should you check before buying off-grid land in Marion County?
RV living is the #1 thing to know: Land Development Code §4.3.6 doesn't allow RV-as-residence on private land outside a licensed RV park. Temporary occupancy is capped (21 days/60 residential, 60/365 agricultural, via a Temporary Use Permit; during-construction needs a building permit, ≤6 months). Budget for a permitted dwelling, not a camper.
If Marion County isn't the right fit for off-grid use, where else should I look?
Costilla County, CO — The canonical US off-grid county. 5.5+ kWh/m²/day solar, $500–$3,000/acre land, RV-residency ordinance on the books. Harsh winters, but if off-grid is the goal this is the standard. Apache County, AZ — Arizona's canonical off-grid county. 5.5–6.0 kWh/m²/day, $1,000–$5,000/acre, permits RV residency outside incorporated areas. Water is the wildcard. Cochise County, AZ — Strong solar, cheap high-desert land, owner-finance market. Less rain than FL but a real off-grid destination.
Run it on a real parcel
County averages don't buy land. Specific addresses do.
Two parcels five miles apart in Marion County can score 50 points apart. Sign up and get 3 free AcreLens reports a month on the specific addresses you’re considering — real off-grid scores backed by NREL, USGS, FEMA, and county records.
Marion County under other lenses
Sources — NREL solar & wind, USGS groundwater & hydrology, FEMA flood zones, USDA soil & wildfire, NOAA climate, and Marion County, Florida public records. Every AcreLens report cites its own per-parcel sources.