County outline
Where Pend Oreille County is located
Area breakdown
Land accounts for 98.2% of Pend Oreille County’s measured area and water for 1.8%. Its combined area converts to 3,692 square kilometers or approximately 912,319 acres.
Green: land · blue: water
| Measurement | Square miles | Square kilometers | Acres |
|---|---|---|---|
| Land | 1,400.245 | 3,626.618 | 896,156.8 |
| Water | 25.254 | 65.408 | 16,162.6 |
| Total | 1,425.499 | 3,692.025 | 912,319.4 |
How Pend Oreille County compares
By original Census land area, Pend Oreille County ranks #25 of 39 in Washington and #430 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.
Its land area is 0.805 times the Washington county-equivalent median of 1,738.8 square miles. It accounts for 2.1% of the combined county land area in the state.
See the complete Washington ranking · What counts as a county equivalent?
Population and density of Pend Oreille County
The Census Bureau estimates that 14,457 people lived in Pend Oreille County on July 1, 2025. That ranks #2,192 of 3,222 county equivalents nationally and #33 of 39 in Washington. Since the April 1, 2020 estimates base of 13,402, the population has grown by 1,055 (+7.9%), compared with +3.8% for Washington as a whole.
With 1,400.2 square miles of land, that is 10 people per square mile (4 per km²), placing Pend Oreille County #2,634 nationally for density and #33 in Washington. The median county equivalent has 47 people per square mile; the Washington median is 39. Put another way, there are about 62 acres of land per resident.
| July 1 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Estimate | 13,505 | 13,894 | 14,145 | 14,364 | 14,367 | 14,457 |
| Change | — | +389 | +251 | +219 | +3 | +90 |
U.S. Census Bureau, Vintage 2025 population estimates. Estimates are revised each year and are not decennial census counts. Density divides the whole population by the whole county’s land area, so it describes an average, not how settlement is distributed within the county. Population sources and methods.
Cities and towns in Pend Oreille County
5 incorporated places lie at least partly in Pend Oreille County. Together they are home to 3,323 people (23%); the other 11,134 (77%) live outside any incorporated place, in unincorporated communities and rural areas.
The largest is Newport city, with 2,242 residents in the county.
| Incorporated place | Population 2025 | Since 2020 | Land mi² |
|---|---|---|---|
| Newport cityCounty seat | 2,242 | +5.2% | 1.521 |
| Ione town | 445 | +2.8% | 0.529 |
| Metaline Falls town | 281 | +3.3% | 0.199 |
| Cusick town | 190 | +26.7% | 0.508 |
| Metaline town | 165 | +2.5% | 0.306 |
Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Pend Oreille County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.
Metropolitan area
Pend Oreille County is not part of any metropolitan or micropolitan statistical area in the Office of Management and Budget’s July 2023 delineation; 1,306 other county equivalents are also outside one. These areas are built around an urban core of at least 10,000 people plus the counties tied to it by commuting, so counties outside them are generally rural.
ZIP codes
9 ZIP Code Tabulation Areas have land in Pend Oreille County; 6 of them have most of their land inside the county, and the others mainly cover neighboring areas.
838569900699009991199913999152991539915699180
ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Lighter codes have less than half of their land in this county. Post-office-box and single-address ZIP Codes have no tabulation area.
Counties bordering Pend Oreille County
Pend Oreille County shares a land border with 4 county equivalents, including 2 in Idaho. It has more land than 1 of them. The largest neighbor is Stevens County (2,477.1 mi²) and the smallest is Boundary County (1,268.7 mi²). Together with its neighbors, Pend Oreille County forms a block of 8,643.5 mi² of land, of which it holds 16.2%.
| Bordering county equivalent | Land mi² | Size vs. Pend Oreille | Compare |
|---|---|---|---|
| Stevens County | 2,477.1 | 1.8× larger | Compare |
| Spokane County | 1,764.2 | 1.3× larger | Compare |
| Bonner CountyIdaho | 1,733.2 | 1.2× larger | Compare |
| Boundary CountyIdaho | 1,268.7 | 1.1× smaller | Compare |
How big is Pend Oreille County compared with U.S. states?
Pend Oreille County has more land than 1 of the 50 states. It is about 1.4 times the land area of Rhode Island (1,033.9 mi²), while Delaware, the next larger state, has 1.4 times as much land (1,948.6 mi²). Washington’s county land could hold about 47 areas the size of Pend Oreille County.
Another way to picture it: the same land area would fill a square about 37.4 miles (60.2 km) on each side. Real county shapes are rarely square, so this is a scale reference rather than a width or driving distance.
State figures are the sums of each state’s county-equivalent land measurements in the same Census release, so states and counties are compared on the same basis. Published state totals can differ slightly because of rounding. Compare all states · Counties bigger than entire states.
What stands out about Pend Oreille County?
Pend Oreille County has more land than 2,792 of the other 3,221 county equivalents in the dataset.
A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.
Does including water change its rank?
Using land plus water places Pend Oreille County at #485 nationally by total area, 55 places farther from the top than its land rank. Other county equivalents gain more area when their water measurements are included.
Its water share is 1.8%, compared with a national county-equivalent median of 1.2% — 0.6 percentage points higher. This describes the statistical geography’s land/water mix, not flood exposure or developable land.
Closest positions in the national land ranking
These entries sit immediately beside Pend Oreille County in the national ranking. They can be in different states and are not necessarily geographic neighbors.
| Land rank | County equivalent | Land mi² | Comparison |
|---|---|---|---|
| #429 | Power County, Idaho | 1,403.8 | Compare |
| #430 | Pend Oreille County, Washington | 1,400.2 | This county |
| #431 | Marinette County, Wisconsin | 1,399.5 | Compare |
Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.
Representative coordinates
The Census internal point is 48.543825, -117.232191. It represents a location inside the geography; it is not necessarily the centroid or the address of a courthouse.
Source and precision
U.S. Census Bureau, 2026 Gazetteer Files, Counties. Original ALAND: 3,626,617,236 m²; AWATER: 65,406,806 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.
Common questions
How big is Pend Oreille County?
Pend Oreille County, Washington has 1,400.2 square miles (3,626.6 km²) of land and 25.3 square miles of water, for a total area of 1,425.5 square miles. It ranks #430 of 3,222 U.S. county equivalents by land area.
Is Pend Oreille County the largest county in Washington?
No. Pend Oreille County ranks #25 of 39 in Washington by land area. The largest is Okanogan County, with 5,266.2 square miles of land.
What counties border Pend Oreille County?
Pend Oreille County shares a land border with Stevens County, Bonner County, Idaho, Spokane County, and Boundary County, Idaho.
What is the population of Pend Oreille County?
The Census Bureau estimates Pend Oreille County had 14,457 residents on July 1, 2025, ranking #2,192 of 3,222 county equivalents. That is 10 people per square mile of land.
What is the county seat of Pend Oreille County?
The county seat of Pend Oreille County is Newport.
What cities and towns are in Pend Oreille County?
Pend Oreille County has 5 incorporated places. The most populous are Newport city, Ione town, Metaline Falls town, Cusick town, and Metaline town; 11,134 residents live outside any incorporated place.
Is Pend Oreille County part of a metropolitan area?
No. Pend Oreille County is outside every metropolitan and micropolitan statistical area in the July 2023 OMB delineation.
How many ZIP codes are in Pend Oreille County?
9 ZIP Code Tabulation Areas have land in Pend Oreille County, and 6 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.
How does Pend Oreille County compare with U.S. states?
It has more land than 1 of the 50 states, including Rhode Island (1,033.9 square miles of land).
How many acres of land are in Pend Oreille County?
The land measurement converts to approximately 896,157 acres. Including water, total area is approximately 912,319 acres. One square mile equals 640 acres.
Why might another source show a different area?
Check whether it reports land or total area, its Census vintage, and its rounding. Our guide explains how to reconcile county area figures.
Can this establish a property boundary?
No. Statistical measurements and generalized maps do not establish property lines. Consult the relevant local surveying or land-records authority.