The map above shows Kentucky and Washington side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Kentucky vs Washington Geography
Land area
- Kentucky has a land area of 39,485 square miles (102,267 km²), while Washington has 66,455 square miles (172,119 km²).
- Washington's land area is 1.7 times (68%) larger than Kentucky's.
Total area
- Kentucky: 40,406 square miles (104,651 km²) vs Washington: 71,301 square miles (184,668 km²), including inland and coastal water.
- Washington's total area is 1.8 times (76%) larger than Kentucky's.
Length
- Kentucky is 257 miles (414 km) long from north to south; Washington is 238 miles (383 km).
- Kentucky's north-south length is 1.1 times (8%) longer than Washington's.
Width
- Kentucky spans 418 miles (672 km) east to west; Washington spans 399 miles (641 km).
- Kentucky's east-west width is 1.0 times (5%) wider than Washington's.
Highest point
- Kentucky's highest point is Black Mountain at 4,134 feet (1,260 m); Washington's is Mount Rainier at 14,409 feet (4,392 m).
- Mount Rainier is 10,275 feet higher than Black Mountain.
Lowest point
- Kentucky's lowest point is Mississippi River at 270 feet; Washington's is Pacific Ocean at 0 feet.
- Washington's lowest point is 270 feet lower.
Kentucky vs Washington Population and History
Population
- Kentucky has a population of 4,588,372 (2024), while Washington has 7,958,180 (2024).
- Washington's population is 1.7 times (73%) larger than Kentucky's.
Population density
- Kentucky: 116.2 people per square mile vs Washington: 119.8.
- Kentucky and Washington have about the same population density.
Biggest city
- Kentucky's biggest city is Louisville with 640,796 people; Washington's is Seattle with 780,995.
- Seattle's population is 1.2 times (22%) larger than Louisville's.
Largest metro area
- Kentucky's largest metropolitan area is Cincinnati, OH-KY-IN metro area (2,302,815 people) vs Washington's Seattle-Tacoma-Bellevue, WA metro area (4,145,494).
- Seattle-Tacoma-Bellevue, WA metro area's population is 1.8 times (80%) larger than Cincinnati, OH-KY-IN metro area's.
History
- Kentucky: Admitted to the Union on June 1, 1792, as the 15th state.
- Washington: Admitted to the Union on November 11, 1889, as the 42nd state.
- In its current form, Kentucky is the older of the two by 97 years.
Kentucky vs Washington Economy
GDP
- Kentucky's GDP is $295.4 billion (2024) vs Washington's $856.0 billion.
- Washington's economic output is 2.9 times (190%) larger than Kentucky's.
GDP per capita
- Kentucky: $64,375 per person vs Washington: $107,564.
- Washington's GDP per capita is 1.7 times (67%) higher than Kentucky's.
Average income
- Kentucky: $58,256 vs Washington: $85,187 average income per person (per capita personal income).
- Washington's average income is 1.5 times (46%) higher than Kentucky's.
Kentucky vs Washington Counties
Number of counties
- Kentucky has 120 counties, while Washington has 39.
- Kentucky's county count is 3.1 times (208%) higher than Washington's.
Biggest county by area
- Kentucky's largest county is Pike County at 786 square miles; Washington's is Okanogan County at 5,266 square miles.
- Okanogan County's land area is 6.7 times (570%) larger than Pike County's.
Smallest county by area
- Kentucky: Gallatin County (98 sq mi) vs Washington: San Juan County (174 sq mi).
- San Juan County's land area is 1.8 times (77%) larger than Gallatin County's.
Most populous county
- Kentucky: Jefferson County (793,881 people) vs Washington: King County (2,340,211 people).
- King County's population is 2.9 times (195%) larger than Jefferson County's.
Least populous county
- Kentucky: Robertson County (2,382 people) vs Washington: Garfield County (2,404 people).
- Robertson County and Garfield County have about the same population.
Richest county
- Kentucky: Oldham County ($87,137 per capita income) vs Washington: King County ($128,684).
- King County's income is 1.5 times (48%) richer than Oldham County's.
Poorest county
- Kentucky: Elliott County ($31,817 per capita income) vs Washington: Ferry County ($50,456).
- Ferry County's income is 1.6 times (59%) richer than Elliott County's.
Kentucky vs Washington Taxes
State income tax
- Kentucky has a top income tax rate of 3.5%, while Washington has a 9% tax on capital gains only.
Property tax
- Kentucky: 0.71% effective rate vs Washington: 0.79% of home value per year.
- Washington's rate is 0.08 percentage points higher.
Sales tax
- Kentucky: 6% combined state and average local rate vs Washington: 9.57%.
- Washington's combined rate is 3.57 percentage points higher.
Official Websites
Kentucky official website · Washington official website
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More Size Comparisons
All Kentucky size comparisons · All Washington size comparisons
Area, elevation and boundary figures come from official national statistics and US Census Bureau and Natural Earth boundary data; US state population, economic, county and tax figures come from the US Census Bureau, the Bureau of Economic Analysis and the Tax Foundation. Figures are rounded and for general reference.