Washington County land: parcels
6,332 parcels
On the county tax roll
County roll 2026 · Map data Oct 26, 2026
- Acres on the roll1,603,960
- In a FEMA flood zoneNot on the digital map74% of parcels here are outside FEMA's digital flood map
Property tax calendar
Colorado 2026 taxes: bills go out in January 2027; first half due March 1, 2027, second half June 15, 2027.
- First half
- March 1, 2027On the 2026 values; or pay the whole bill by April 30, 2027
- Second half
- June 15, 2027A late half accrues 1% interest a month
- Value protests
- To the assessor by June 8 (next working day when it falls on a weekend)Then to the county board of equalization
Free account: 25 parcel cards a day on the map, with watches and a saved search. Get started free
No zoning layer for Washington County yet. Its planning office (or a town's, inside town limits) can say which zoning, if any, applies to a parcel.
Towns and census places in Washington County
- Akron962 parcels
- Otis336 parcels
- Cope104 parcels
Flood zones and wetlands
Recorded flood claims in Washington County
Fewer than 10 insured flood claims were recorded in Washington County since 1978.
Typical lot sizeThe typical lot, from the roll
The median parcel in Washington County is 160.0 acres (6,316 parcels with a size).
Acres from the county roll, or from the parcel's own outline where the roll's figure is off by more than three times. Condominium units that share one point (each carrying the whole complex's acres) are left out of the lot sizes.
Questions about Washington County landAnswers from the public records
How many parcels are in Washington County, CO?
6,332 parcels on the 2026 Washington County tax roll (county file Mar 2026), covering 1,603,960 acres.
Is vacancy verified in Washington County, CO?
Washington County's open layers carry no land-use class, building value or assessment rate, so vacant land isn't identified here yet.
What is the typical lot size in Washington County?
The median parcel is 160.0 acres, from 6,316 parcels with a recorded size.
How much of Washington County is in a flood zone?
74% of parcels here are outside FEMA's digital flood map (National Flood Hazard Layer, as of Oct 2026), so we print no flood-zone share. An older paper FEMA map may still apply; ask the county floodplain office before you buy.
Are there wetlands in Washington County?
0.6% of parcels are a quarter or more wetland on the USFWS National Wetlands Inventory, a mapping guide, not a legal delineation.
Are there land prices for Washington County?
No land-price range is shown for Washington County yet. We have no sale-price file for Washington County yet.
Where does this data come from?
Parcels: State of Colorado public parcels (OIT) and county assessor layers. Flood: FEMA National Flood Hazard Layer. Wetlands: USFWS National Wetlands Inventory. Towns: U.S. Census places. Every figure is counted from those files on our map.
Sources & methodSources, dates and how these figures are built
Headline figures: source and date
Acres on the roll: County tax roll, 2026 roll, counted on our map built Oct 26, 2026.
In a FEMA flood zone: FEMA National Flood Hazard Layer, as of Oct 10, 2026; counted on our map built Oct 26, 2026.
Property tax due dates
Colorado Revised Statutes 39-10-104.5, 39-5-122 and 39-8-106. Checked Oct 13, 2026.
Flood zones and wetlands: source and date
Parcels at least 25% wetland: USFWS National Wetlands Inventory, as of Oct 1, 2026; counted on our map built Oct 26, 2026.
Recorded flood claims in Washington County
FEMA counts claims on buildings with NFIP flood insurance, so land without an insured building never shows here. Claims counted from 1978 to Sep 2026.
Source: OpenFEMA NFIP Redacted Claims v3, as of Sep 2026.
Land sale prices
We have no sale-price file for this county yet, and Colorado has no statewide sale-price file.
Sources
Parcels: State of Colorado public parcels (OIT) and county assessor layers (2026 roll, county file Mar 2026); flood: FEMA National Flood Hazard Layer (as of Oct 2026); wetlands: USFWS National Wetlands Inventory (as of Oct 2026); counted on our map built Oct 2026.
This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data.