The city of Pea Ridge encompasses the following counties: Benton.
Pea Ridge encompasses land area: 4.1 sq mi (10.6 km2), water area: 0 sq mi (0 km2). The elevation is 1,289 ft (393 m) above sea level. This equates to a population density of 572.2/sq mi (221.3/km2). The local time zone is Central (CST) (UTC-6).
Local area codes are 479. The Federal Information Processing Standard (FIPS) code for the city is 05-54200, which is used in computer filings when non-government agencies and contractors fulfill government contracts.