| Official Name: | Pea Ridge, Alabama |
| Settlement Type: | Census-designated place |
| Pushpin Map: | Alabama#USA |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Alabama |
| Subdivision Type2: | County |
| Subdivision Name2: | Shelby |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 40.64 |
| Area Land Km2: | 40.52 |
| Area Water Km2: | 0.12 |
| Area Total Sq Mi: | 15.69 |
| Area Land Sq Mi: | 15.64 |
| Area Water Sq Mi: | 0.05 |
| Population As Of: | 2020 |
| Population Total: | 841 |
| Population Density Km2: | 20.76 |
| Population Density Sq Mi: | 53.76 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 830 |
| Coordinates: | 33.1531°N -86.9278°W |
| Area Code: | 205, 659 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 1989120 |
Pea Ridge is a census-designated place in Shelby County, Alabama, United States. The community is named for Pea Ridge, the broadest ridge in the Cahaba Coal Field. This ridge divides the waters of the Cahaba River and Little Cahaba River.[2] Pea Ridge has maintained a volunteer fire department since 1972.[3]
It was first named as a CDP in the 2020 Census which listed a population of 841.[4]
| White alone (NH) | 721 | 85.73% | |
| Black or African American alone (NH) | 9 | 1.07% | |
| Native American or Alaska Native alone (NH) | 0 | 0.00% | |
| Asian alone (NH) | 0 | 0.00% | |
| Pacific Islander alone (NH) | 0 | 0.00% | |
| Some Other Race alone (NH) | 2 | 0.24% | |
| Mixed Race/Multi-Racial (NH) | 47 | 5.59% | |
| Hispanic or Latino (any race) | 62 | 7.37% | |
| Total | 841 | 100.00% |