The map above shows Arizona and Kentucky side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Arizona vs Kentucky Geography
Land area
- Arizona has a land area of 113,655 square miles (294,366 km²), while Kentucky has 39,485 square miles (102,267 km²).
- Arizona's land area is 2.9 times (188%) larger than Kentucky's.
Total area
- Arizona: 113,985 square miles (295,220 km²) vs Kentucky: 40,406 square miles (104,651 km²), including inland and coastal water.
- Arizona's total area is 2.8 times (182%) larger than Kentucky's.
Length
- Arizona is 429 miles (690 km) long from north to south; Kentucky is 257 miles (414 km).
- Arizona's north-south length is 1.7 times (67%) longer than Kentucky's.
Width
- Arizona spans 452 miles (727 km) east to west; Kentucky spans 418 miles (672 km).
- Arizona's east-west width is 1.1 times (8%) wider than Kentucky's.
Highest point
- Arizona's highest point is Humphreys Peak at 12,620 feet (3,847 m); Kentucky's is Black Mountain at 4,134 feet (1,260 m).
- Humphreys Peak is 8,486 feet higher than Black Mountain.
Lowest point
- Arizona's lowest point is Colorado River at 71 feet; Kentucky's is Mississippi River at 270 feet.
- Arizona's lowest point is 199 feet lower.
Arizona vs Kentucky Population and History
Population
- Arizona has a population of 7,582,384 (2024), while Kentucky has 4,588,372 (2024).
- Arizona's population is 1.7 times (65%) larger than Kentucky's.
Population density
- Arizona: 66.7 people per square mile vs Kentucky: 116.2.
- Kentucky's population density is 1.7 times (74%) higher than Arizona's.
Biggest city
- Arizona's biggest city is Phoenix with 1,673,164 people; Kentucky's is Louisville with 640,796.
- Phoenix's population is 2.6 times (161%) larger than Louisville's.
Largest metro area
- Arizona's largest metropolitan area is Phoenix-Mesa-Chandler, AZ metro area (5,186,958 people) vs Kentucky's Cincinnati, OH-KY-IN metro area (2,302,815).
- Phoenix-Mesa-Chandler, AZ metro area's population is 2.3 times (125%) larger than Cincinnati, OH-KY-IN metro area's.
History
- Arizona: Admitted to the Union on February 14, 1912, as the 48th state.
- Kentucky: Admitted to the Union on June 1, 1792, as the 15th state.
- In its current form, Kentucky is the older of the two by 120 years.
Arizona vs Kentucky Economy
GDP
- Arizona's GDP is $570.1 billion (2024) vs Kentucky's $295.4 billion.
- Arizona's economic output is 1.9 times (93%) larger than Kentucky's.
GDP per capita
- Arizona: $75,186 per person vs Kentucky: $64,375.
- Arizona's GDP per capita is 1.2 times (17%) higher than Kentucky's.
Average income
- Arizona: $65,798 vs Kentucky: $58,256 average income per person (per capita personal income).
- Arizona's average income is 1.1 times (13%) higher than Kentucky's.
Arizona vs Kentucky Counties
Number of counties
- Arizona has 15 counties, while Kentucky has 120.
- Kentucky's county count is 8.0 times (700%) higher than Arizona's.
Biggest county by area
- Arizona's largest county is Coconino County at 18,616 square miles; Kentucky's is Pike County at 786 square miles.
- Coconino County's land area is 23.7 times larger than Pike County's.
Smallest county by area
- Arizona: Santa Cruz County (1,236 sq mi) vs Kentucky: Gallatin County (98 sq mi).
- Santa Cruz County's land area is 12.6 times larger than Gallatin County's.
Most populous county
- Arizona: Maricopa County (4,673,096 people) vs Kentucky: Jefferson County (793,881 people).
- Maricopa County's population is 5.9 times (489%) larger than Jefferson County's.
Least populous county
- Arizona: Greenlee County (9,410 people) vs Kentucky: Robertson County (2,382 people).
- Greenlee County's population is 4.0 times (295%) larger than Robertson County's.
Richest county
- Arizona: Maricopa County ($72,176 per capita income) vs Kentucky: Oldham County ($87,137).
- Oldham County's income is 1.2 times (21%) richer than Maricopa County's.
Poorest county
- Arizona: Graham County ($44,164 per capita income) vs Kentucky: Elliott County ($31,817).
- Graham County's income is 1.4 times (39%) richer than Elliott County's.
Arizona vs Kentucky Taxes
State income tax
- Arizona has a top income tax rate of 2.5%, while Kentucky has a top income tax rate of 3.5%.
- Kentucky's top rate is 1 percentage points higher.
Property tax
- Arizona: 0.43% effective rate vs Kentucky: 0.71% of home value per year.
- Kentucky's rate is 0.28 percentage points higher.
Sales tax
- Arizona: 8.54% combined state and average local rate vs Kentucky: 6%.
- Arizona's combined rate is 2.54 percentage points higher.
Official Websites
Arizona official website · Kentucky official website
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More Size Comparisons
All Arizona size comparisons · All Kentucky 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.