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Buying land in Boone County, Missouri: what to check

Boone County covers 686 square miles of land and 6 of water in Missouri, with about 192,154 residents in 2024 (up 4.7% since 2020). The 2020 Census counted 90% of its land as rural and 77% of residents as living in urban areas. Farms operate 45% of the county's land. Below: how much of Boone County floods, what its soils allow, what farmland is worth and how often it's in drought, from free public data with every source linked.

Check a location in Boone CountySee a sample report

Boone County at a glance

In the 100-year floodplain

12%

Above the state's county median (8.3%)

FEMA National Risk Index

Hydric (wetland-type) soils

22%

Above the state's county median (8.4%)

USDA NRCS Web Soil Survey (SSURGO)

Soils very limited for septic

99%

USDA NRCS Web Soil Survey (SSURGO)

Farm land value, 2022

$5,608/acre

Above the state's county median ($4,462)

USDA NASS, 2022 Census of Agriculture

Weeks in severe drought

8.8%

Share of weekly maps, 2021–2026

U.S. Drought Monitor county statistics

Land classed rural

90%

Census 2020 Census urban and rural classification

What to check before buying land in Boone County

Ordered by what Boone County's numbers point to. Every parcel differs, so treat this as where to look first.

  1. 1.Budget for a perc test and maybe an engineered septic

    USDA rates 99% of Boone County's mapped soils "very limited" for conventional septic absorption fields and 0% "not limited".

    Without city sewer you need a septic permit from the county or state health department. Make the offer contingent on a passing soil or perc test; mound and aerobic systems can cost several times a conventional one.

    Guide: Perc tests and septic systems

  2. 2.Put flood checks first in Boone County

    12% of the county's area is in the 1%-annual-chance (100-year) floodplain FEMA's National Risk Index uses for inland flooding; 11% of its mapped soils flood occasionally or frequently.

    Look up the FEMA flood zone at the pin, not the parcel's address. If any of the land is in zone A or V, price flood insurance before you offer, ask for an elevation certificate, and check whether the access road floods too.

    Guide: Flood zones before buying land

  3. 3.Expect wetlands; map them before you plan

    About 22% of Boone County's mapped soils are hydric (formed under saturated conditions, a federal wetland indicator) and 22% are poorly or very poorly drained (USDA SSURGO).

    Open the National Wetlands Inventory mapper at the parcel. Filling or draining a wetland can need a Clean Water Act Section 404 permit, and wet ground limits septic fields and building pads.

    Guide: Wetlands on land for sale

  4. 4.Check the soils if you plan to farm, graze or garden

    Farm real estate in Boone County averaged $5,608 an acre including buildings in the 2022 Census of Agriculture, and 33% of its mapped soils are prime or of statewide importance.

    Compare the asking price with recent sales of similar tracts, not the county average, which mixes cropland, pasture, timber and homesites. If an ag tax valuation applies, ask what the rollback taxes would be if you change the use.

    Guide: Land due diligence checklist

  5. 5.Check wildfire exposure and insurance

    FEMA rates Boone County's wildfire risk relatively low, and 23% of the county's area is in the wildfire exposure zone the National Risk Index uses.

    Ask an insurer for a quote early; some carriers won't write new policies in high-hazard areas. Check access for fire trucks, nearby fire stations and the vegetation around the building site.

    Guide: Wildfire risk for rural land

  6. 6.Confirm legal road access and power

    The 2020 Census classified 90% of Boone County's land area as rural.

    Rural tracts are often sold without recorded access or a power line nearby. Get the title company to confirm a recorded easement or public road frontage, and ask the electric co-op what a line extension costs.

    Guide: Road access and landlocked land

Flood zones, wetlands and water in Boone County

Area in the 1%-annual-chance (100-year) floodplain
12%, 33rd highest of 115 in Missouri FEMA National Risk Index
Mapped soils that flood occasionally or frequently
11% USDA NRCS Web Soil Survey (SSURGO)
Hydric soils (a federal wetland indicator)
22% USDA NRCS Web Soil Survey (SSURGO)
Poorly or very poorly drained soils
22% USDA NRCS Web Soil Survey (SSURGO)
Surface water (lakes, rivers, reservoirs)
6 sq mi Census 2024 Gazetteer Files
Drought on 2026-10-27
under 1% moderate or worse, 0% severe or worse U.S. Drought Monitor county statistics

The floodplain share is the area FEMA's National Risk Index counts as exposed to inland flooding, mostly mapped 100-year flood zones. It says how common flood-prone land is in Boone County, not whether a given parcel floods. For that, look up the zone at your exact point on the FEMA Flood Map Service Center or run the free check.

Soils and terrain

Prime farmland
4.2% USDA NRCS Web Soil Survey (SSURGO)
Prime only if drained, irrigated or protected
18% USDA NRCS Web Soil Survey (SSURGO)
Farmland of statewide importance
29% USDA NRCS Web Soil Survey (SSURGO)
Average slope over 15%
18% USDA NRCS Web Soil Survey (SSURGO)
Very limited for septic absorption fields
99% USDA NRCS Web Soil Survey (SSURGO)
Not limited for septic absorption fields
0% USDA NRCS Web Soil Survey (SSURGO)

Shares of Boone County's soil-surveyed land (about 437,468 acres, open water excluded), using each map unit's dominant condition in USDA's SSURGO soil survey. Soils change within a few hundred feet, so the soil at your building site is what matters.

Farms and land use

Farms (2022)
1,120 USDA NASS, 2022 Census of Agriculture
Share of the county's land in farms
45% USDA NASS, 2022 Census of Agriculture
Average farm size
176 acres (median 51) USDA NASS, 2022 Census of Agriculture
Average value of land and buildings
$5,608 per acre, 26th highest of 114 in Missouri USDA NASS, 2022 Census of Agriculture
Cropland
119,577 acres USDA NASS, 2022 Census of Agriculture
Pasture and rangeland
41,088 acres USDA NASS, 2022 Census of Agriculture
Woodland on farms
33,674 acres USDA NASS, 2022 Census of Agriculture
Irrigated land
4,792 acres USDA NASS, 2022 Census of Agriculture

Natural hazard ratings

FEMA's National Risk Index rates each hazard for Boone County relative to every other U.S. county. Overall risk: Relatively Moderate.

  • LightningRelatively High
  • Strong windRelatively High
  • TornadoRelatively High
  • Winter weatherRelatively High
  • Heat waveRelatively Moderate
  • River and inland floodingRelatively Moderate
  • LandslideRelatively Moderate
  • DroughtRelatively Low
  • EarthquakeRelatively Low
  • HailRelatively Low
  • WildfireRelatively Low
  • HurricaneVery Low

FEMA National Risk Index, December 2025

Questions about buying land in Boone County

How much of Boone County, MO is in a flood zone?

About 12% of Boone County's area is in the 1%-annual-chance (100-year) floodplain used by FEMA's National Risk Index (December 2025), 33rd highest of 115 counties in Missouri. Whether a given parcel is in a flood zone depends on its exact location, so check the FEMA map at your pin.

How much does land cost per acre in Boone County?

The 2022 Census of Agriculture put the average value of farm land and buildings in Boone County at $5,608 an acre, 26th highest of 114 counties in Missouri (the median Missouri county was $4,462). It's a self-reported average across farms, so small homesites and recreational tracts often sell for more per acre.

Will a septic system work on land in Boone County?

Often, but test first. USDA soil surveys rate 99% of Boone County's mapped soils very limited for conventional septic absorption fields, usually because of wetness, slow permeability, shallow rock or flooding. A perc or soil test on the parcel decides what system the health department will permit.

Is there good farmland in Boone County?

4.2% of Boone County's mapped soils are prime farmland, 18% are prime only if drained, irrigated or protected from flooding, and 29% are farmland of statewide importance (USDA SSURGO). The 2022 Census of Agriculture counted 1,120 farms averaging 176 acres.

How often is Boone County in drought?

Since 2021, at least half of the county was in severe drought or worse in 8.8% of weekly U.S. Drought Monitor maps, and in extreme drought in 2.3%. On 2026-10-27, under 1% of the county was in moderate drought or worse.

Can I check a specific property in Boone County?

Yes. Enter the address or drop a pin anywhere in Boone County on the free check. It shows which checks return data at that exact point, and the full report costs $29: flood zone, slope, soils, wetlands, roads, power lines, wildfire and more, each with its source. It is a screen of public maps, not a survey, title search or perc test.

Check the parcel, not just the county

County numbers tell you what to look for. The free check looks at your exact point in Boone County: flood zone, slope, soils, wetlands, roads, power and more. The full report is $29.

Check a location in Boone County

What these numbers can't tell you

  • County shares describe Boone County as a whole; a parcel can be entirely in or out of a flood zone, wetland or poor soil.
  • It doesn't look at the whole parcel, its boundaries, title, easements, zoning or permits.
  • It isn't a survey, appraisal, elevation certificate, soil or perc test, or Phase I environmental site assessment.
  • It can't see local distribution power lines, driveways, legal access, wells or mineral rights.
  • Maps lag behind the ground, and distances are straight-line, not driving distance.

Sources and vintages

Summarized per county by our build script on 2026-10-31. County figures cover the whole county; checks on the report are at your point.