Round Valley, Arizona
Census-designated place
Round Valley Show map of Arizona Round Valley Show map of the United States
Coordinates: 34°11′40″N 111°18′31″W / 34.19444°N 111.30861°W / 34.19444; -111.30861
Country	United States
State	Arizona
County	Apache County
Area [1]
• Total	4.79 sq mi (12.40 km2)
• Land	4.79 sq mi (12.40 km2)
• Water	0.00 sq mi (0.00 km2)
Elevation	7,090 ft (2,160 m)
Population  (2020)
• Total	459
• Density	95.90/sq mi (37.03/km2)
Time zone	UTC-7 (MST (no DST))
ZIP code	85541[2]
Area code	928
FIPS code	04-61448
GNIS feature ID	2582855

Round Valley is a census-designated place (CDP) in Apache County, Arizona, United States. The population was 487 at the 2010 census.^[3]

The CDP is located in northern Gila County, just south of the town of Payson. Arizona State Route 87, the Beeline Highway, forms the western edge of the CDP and runs north 3 miles (5 km) to the center of Payson. According to the United States Census Bureau, the Round Valley CDP has a total area of 4.8 square miles (12.4 km²), all land.^[3]

Round Valley was the site of the Gibson Ranch in the late 19th century into the 20th century:

In 1881, Joseph Gibson moved to what is now Round Valley and established a ranch there. He worked as a freighter, mail carrier, and of course, rancher. He was instrumental in establishing a mail service to Gisela and was the first mail carrier to that area. In 1892, Joseph died in Globe due to a crushed leg. His wife, Ruth, sold the ranch at Round Valley to Bill and Harvey Colcord in 1904. Her son, Wash Gibson, later bought it back. Then even later on, Wash's son, Randall Gibson, owned the ranch. Randall branded U Lazy Y.

— Jayne Peace and Jinx Pyle, Payson, AZ town historians, from "Brands: An Important Part Of Western History", http://www.paysonroundup.com/news/2005/jan/04/brands_an_important/

It is in the Payson Unified School District.^[5] Payson High School is the zoned comprehensive high school.