Bolthole Index

Virginia · Off-grid & homestead potential

Fairfax County

35Index Score / 100
#110 of 133 in Virginia

Fairfax County scores 35/100 on the Bolthole Index, a marginal county profile. Its strengths are a durable current and mid-century hazard profile and a stronger property-autonomy legal backdrop. The trade-offs: little seclusion — roughly 1,945,020 people within a 30-minute drive and higher long-term carry cost.

Found land here? Start a Property Hunt →

County locator

Fairfax County in Virginia

35
County map
Fairfax County highlighted among the Virginia counties · colored by Index score

How Fairfax County scores

Seclusion10100% ev.
Self-Sufficiency63100% ev.
Admin Boringness44100% ev.
Durability85100% ev.
Property Autonomy66100% ev.
Carry Cost32100% ev.

Evidence strength: 100%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$779kTypical home
1%Property tax
$17,494Land / acre
43.2"Annual rain
2.2% of yrsSevere drought
5.9 / yr (+5.6)Mid-century 100°F days
12.9 daysMid-century dry spell
2.07" (+5.5%)Mid-century 1-day rain
1.47×Wildfire change factor
100%Forward climate coverage
$1,412Home insurance / yr
2.1% / yrInsurance growth
0.97%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
1,945,020People within 30 min
11,723,126People within 2 hr
2,074,470Radius comparison (15 mi)
2,920.2People / sq mi
5.5%Federal land
87%Land at 15% slope or less
9.1%Septic soil without severe limits
17,587 acWorkable land screen
84.6%Wooded land
75.1 tonsBiomass / forest ac
56.3°FAvg temp

Scout Fairfax County

Camp here before you commitBook a few nights nearby on Hipcamp →Already own land here?Earn money hosting campers — get $100 when you become a Hipcamp host →

Some links are affiliate or referral links — we may earn a commission, at no cost to you.

Property hunt

Find land. Bring the promising ones back.

Search live inventory elsewhere, then cost and vet each candidate here. No copied listings, account, or paid data feed.

Each button opens a current land search for Fairfax County. Listing sites control their own results and filters.

Analyze a property
Add setup-cost allowances

Use rough quotes or placeholders. Blank fields count as $0.

Working estimate

land + entered setup costs
Asking $ / acre
Setup allowance
All-in $ / acre

A planning estimate, not a valuation or contractor quote. The USDA benchmark includes farm land and buildings; it is context, not a parcel comp.

Before an offer

Parcel due diligence

0/8 checked

Saved properties and checklist progress stay on this device. Bolthole Index does not receive them.

Building & land-use rules in Fairfax County

What it takes to build here — permits, zoning, and septic — scouted from Fairfax County’s own official sources.

Always confirm current rules with Fairfax County Land Development Services before you buy or build. Scouted Jul 2026 from official county sources.

Water rights & wells in Fairfax County

Whether a new home can legally get its own water here — the sub-state groundwater regime, from Virginia’s water agency.

Over-appropriated / declining

The aquifer here is over-appropriated and declining. A domestic well is usually still permit-exempt, but long-term supply is a genuine risk.

Household wellExempt — no permit or water right

Household wells are exempt from the groundwater withdrawal permit even inside a Groundwater Management Area, but a private well in a GWMA must be registered with DEQ within 30 days (Va. Code 62.1-258); a permit is triggered only at 300,000 gal/month.

Limit: < 300,000 gal/month (no withdrawal permit)

Virginia DEQ — Ground Water Withdrawal Permitting
  • Eastern Virginia Groundwater Management Areapartial of county

    DEQ has imposed mandatory withdrawal reductions on large Coastal Plain permittees because permitted demand exceeds sustainable aquifer yield (declining heads, land subsidence, saltwater-intrusion risk). Household wells (<300,000 gal/mo) are exempt but must be registered. The I-95-west counties (Fairfax, Chesterfield, Hanover, Henrico, Prince William, Spotsylvania, Stafford, Caroline) are included only east of I-95.

    Virginia DEQ / 9VAC25-600-20

Regulated-riparian state (large uses permitted). Groundwater rules change and basin boundaries follow the aquifer, not the county line — confirm current well and appropriation rules with the Virginia state water agency before you buy or drill.Groundwater governance as of Jul 2026, cited to each administering agency.

Living off-grid in Fairfax County, Virginia

Is Fairfax County a good place to live off-grid or homestead?

Fairfax County scores 35/100 on the Bolthole Index, a marginal county profile. Its strengths: a durable current and mid-century hazard profile and a stronger property-autonomy legal backdrop. Watch-outs: little seclusion — roughly 1,945,020 people within a 30-minute drive and higher long-term carry cost.

Do you need a building permit in Fairfax County, Virginia?

Fairfax County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Fairfax County Health Department (Virginia Department of Health). Owner-builders may act as their own contractor to build their home. Rules change and cities within the county differ — always confirm with the county before you buy or build.

How much does land cost in Fairfax County, Virginia?

Land in Fairfax County runs about $17,494 per acre, based on the latest county data.

What is the water situation in Fairfax County?

Fairfax County gets about 43.2" of rain a year, with severe drought in roughly 2.2% of years. On water rights, Fairfax County lies in the Eastern Virginia Groundwater Management Area — DEQ has imposed mandatory withdrawal reductions on large Coastal Plain permittees because permitted demand exceeds sustainable aquifer yield (declining heads, land subsidence, saltwater-intrusion risk). Household wells (<300,000 gal/mo) are exempt but must be registered. The I-95-west counties (Fairfax, Chesterfield, Hanover, Henrico, Prince William, Spotsylvania, Stafford, Caroline) are included only east of I-95..

How remote is Fairfax County?

A representative private-land location has about 1,945,020 people within a 30-minute drive and 11,723,126 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.

Off-grid gear

Going off-grid in Fairfax County means bringing your own water and power. The kit we’d start with:

WaterCrystal QuestFilter any source — well, rain, or creek — to drinking-clean.PowerBluettiSolar generators and home battery backup for living off the grid.

These are affiliate links — we may earn a commission, at no cost to you.

How Fairfax compares in Virginia

Compare side-by-side →See all 133 Virginia counties ranked →