Benton County property record for 421 Lower County Line Rd, Prosser, WA 99350
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 1 ba · 1,548 sqft · built 1900 |
| Lot Size | 4.32 acres (188,615 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $321 (2023) |
| APN | 106843012493001 |
| Primary APN | 106843012493001 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,548 sqft Living Area |
| Gross Area | 3,099 sqft |
| 1st Floor Area | 1,548 sqft |
| Flooring | Carpet |
| Year Built | Built 1900 |
|---|---|
| Architectural Style | Conventional |
| Exterior Material | Other |
| Construction Type | Wood |
| Foundation Type | Slab (Mat/Raft) |
| Roof Material | Metal |
| Lot Area | 188,615 sqft (4.32 acres) |
| Garage Type | Attached |
| Garage Area | 576 sqft |
| Parking Spaces | 2 Parking Spaces |
| Deck Area | 168 sqft |
|---|---|
| Patio Area | 364 sqft |
| Shed | 1 Shed |
| Shed Area | 396 sqft |
| Pole Barn | 975 sqft |
| Lawn Sprinklers | Lawn Sprinklers |
| Heating System | Heat Pump |
|---|---|
| Sewer | Connected |
| Street Address | 421 LOWER COUNTY LINE RD |
|---|---|
| City | PROSSER |
| State | WA |
| Zip | 99350-8780 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | SECTION 06 TOWNSHIP 8 RANGE 24 SHORT PLAT #2493 LOT 1 AF#00-011531 |
| Legal Range | 24 |
| Legal Township | 08 |
| Legal Section | 06 |
| Legal Subdivision | SHORT PLAT |
| Legal Lot Number | 1 |
| Jurisdiction | BENTON WA |
| Township / Civil Division | NORTHWEST BENTON |
| Census Block Group | 2 |
| Census Block | 2005 |
| Census Tract | 11802 |
421 Lower County Line Rd is owned and occupied by an individual.
Source: Benton County records, as of March 29, 2024
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 421 LOWER COUNTY LINE RD, PROSSER, WA 99350-8780 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Jun 7, 2026 |
Source: Benton County assessment roll, as of May 31, 2023
| Type | Name |
|---|---|
| State | Washington |
| County | Benton County |
| Unified School District | Prosser School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2023 | $321.00 Senior Citizen's exemption | $305,270 (+11.58%) Land $127,810 Building $177,460 | $305,270 (+11.58%) Land $127,810 Building $177,460 |
| 2022 | $273,590 Land $127,810 Building $145,780 | $273,590 Land $127,810 Building $145,780 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA has no flood map on file for 421 Lower County Line Rd; 2 flood insurance policies are in force nearby.
Source: FEMA National Flood Hazard Layer · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Not on file |
|---|---|
| Nearby Flood Policies | 2 in force |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Wildfire risk around 421 Lower County Line Rd is moderate, ranking above 62% of the US, with a 0.2% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 62% of the US · above 43% of Washington |
|---|---|
| Wildfire Likelihood | 0.2% annual chance |
| Exposure | Direct burnable vegetation |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: FCC Broadband Data Collection, based on 26 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Fiber | 1,000 / 1,000 |
| Advanced High Speed Internet Fixed Wireless | 500 / 100 |
| PocketiNet Fixed Wireless | 200 / 50 |
May also be available: Verizon.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures