- Population: 18,195 (Change since 1990: +9.9%)
- Created: October 29, 1835
- County seat: Pocahontas
- Largest town: Pocahontas (Pop. 6,518)
- Name origin: John Randolph
- Antioch (Unincorporated)
- Latitude & Longitude: 36°23'45" N, 91°02'51" W
- Elevation: 418
- Civil township: Jackson
- USGS Quad: Warm Springs (Shows Antioch Church)
- Attica (Unincorporated)
- Located on AR 251 northwest of Pocahontas
- Latitude & Longitude: 36°21'03" N, 90°59'43" W
- Survey: T. 20 N., R. 1 E., Sec. 29
- Elevation: 370
- Civil township: Foster
- USGS Quad: Pocahontas
- Baker Den (Unincorporated)
- Latitude & Longitude: 36°27'20" N, 91°08'20" W
- Elevation: 400
- Civil township: Baker
- USGS Quad: Dalton
- Biggers (Town)
- Population: 355 (Change since 1990: +5.3%)
- Located just off US 67 southwest of Reyno along Current River
- Latitude & Longitude: 36°19'57" N, 90°48'22" W
- Birdell (Unincorporated)
- Located on US 62 west of Pocahontas near the crossing of the Eleven Point River
- Latitude & Longitude: 36°14'40" N, 91°04'41" W
- Survey: T. 19 N., R. 1 W., Sec. 34
- Elevation: 321
- Civil township: West Roanoke
- USGS Quad: Noland
- Brakebill (Unincorporated)
- Located at intersection CR 372/Brakebill Road and
CR 382/Warm Springs Road northwest of Maynard
- Latitude & Longitude: 36°27'28" N, 90°57'47" W
- Elevation: 480
- Civil township: Siloam
- USGS Quad: Maynard
- Brockett (Unincorporated)
- Located at the AR 115 crossing of Fourche River
- Latitude & Longitude: 36°20'19" N, 90°56'34" W
- Survey: T. 20 N., R. 1 E., Sec. 35
- Elevation: 300
- Civil township: Columbia
- USGS Quad: Pocahontas
- Cedar Grove (Unincorporated)
- Latitude & Longitude: 36°19'60" N, 90°57'03" W
- Elevation: 340
- Civil township: Columbia
- USGS Quad: Pocahontas (Not shown)
- Dalton (Unincorporated)
- Located at the AR 93 crossing of the Eleven Point River
- Latitude & Longitude: 36°25'16" N, 91°08'29" W
- Elevation: 370
- Civil township: Dalton
- USGS Quad: Dalton
- Davidsonville (Historical)
- Located at the end of AR 166 along Black River
- Latitude & Longitude: 36°09'15" N, 91°03'20" W
- Survey: T. 18 N., R. 1 W., Sec. 35
- Elevation: 280
- Civil township: East Roanoke
- USGS Quad: Noland (Shows Old Davidsonville State Park)
- Map: 1835
- Debrow (Unincorporated)
- Located somewhere northeast of Pocahontas
- Latitude & Longitude: 36°20'33" N, 90°54'33" W
- Elevation: 350
- Civil township: Columbia
- USGS Quad: Pocahontas (Not shown)
- Map: 1914 (Debows)
- Dunn (Unincorporated)
- Located along US 62 southwest of Pocahontas
- Latitude & Longitude: 36°14'26" N, 91°06'20" W
- Survey: T. 19 N., R. 1 W., Sec. 32
- Elevation: 310
- Civil township: West Roanoke
- USGS Quad: Noland
- East Pocahontas (Unincorporated)
- Latitude & Longitude: 36°15'02" N, 90°57'43" W
- Elevation: 265
- Civil township: Demun
- USGS Quad: Pocahontas (Not shown)
- Map: 1898 McNally
- Elevenpoint (Unincorporated)
- Alternate name: Eleven Point
- Located at the AR 90 crossing of the Eleven Point River
- Latitude & Longitude: 36°20'30" N, 91°07'39" W
- Elevation: 335
- Civil township: Water Valley
- USGS Quad: Ravenden Springs
- Elkins Park (Unincorporated)
- Located on AR 115 just south of Maynard
- Latitude & Longitude: 36°24'35" N, 90°53'57" W
- Elevation: 470
- Civil township: Richardson
- USGS Quad: Maynard
- Elm Store (Unincorporated)
- Located on AR 93 near the Missouri state line
- Latitude & Longitude: 36°28'51" N, 91°11'14" W
- Elevation: 500
- Civil township: Dalton
- USGS Quad: Dalton
- Elnora (Unincorporated)
- Located on CR 610 just off US 67 south of Manson
- Latitude & Longitude: 36°10'20" N, 90°57'47" W
- Elevation: 260
- Civil township: Bristow
- USGS Quad: Manson
- Engelberg (Unincorporated)
- Located on AR 166 northeast of Pocahontas
- Latitude & Longitude: 36°20'16" N, 90°54'33" W
- Survey: T. 20 N., R. 2 E., Sec. 31
- Elevation: 350
- Civil township: Running Lake
- USGS Quad: Pocahontas
- Fender (Unincorporated)
- Located on AR 90 west of O'Kean
- Latitude & Longitude: 36°10'30" N, 90°53'45" W
- Elevation: 275
- Civil township: Wiley
- USGS Quad: Manson
- Glaze Creek (Unincorporated)
- Latitude & Longitude: 36°28'46" N, 90°52'58" W
- Elevation: 436
- Civil township: Siloam
- USGS Quad: Maynard
- Gravesville (Unincorporated)
- Latitude & Longitude: 36°21'14" N, 91°03'28" W
- Elevation: 520
- Civil township: Eleven Point
- USGS Quad: Ravenden Springs SE
- Hamil (Unincorporated)
- Located on AR 231
- Latitude & Longitude: 36°24'11" N, 91°03'55" W
- Elevation: 426
- Civil township: Jackson
- USGS Quad: Warm Springs
- Holmes (Unincorporated)
- Ingram (Unincorporated)
- Located at junction AR 231 and AR 251 north of Pocahontas
- Latitude & Longitude: 36°23'56" N, 91°00'27" W
- Survey: T. 20 N., R. 1 E., Sec. 7
- Elevation: 360
- Civil township: Ingram
- USGS Quad: Warm Springs
- Jerrett (Unincorporated)
- Latitude & Longitude: 36°24'10" N, 90°57'27" W
- Elevation: 307
- Civil township: Columbia
- USGS Quad: Maynard
- Keller (Unincorporated)
- Located northeast of Pocahontas
- Latitude & Longitude: 36°18'37" N, 90°51'40" W
- Elevation: 268
- Civil township: Running Lake
- USGS Quad: Reyno
- Map: 1914
- Kingsville (Unincorporated)
- Latitude & Longitude: 36°17'03" N, 91°13'14" W
- Elevation: 395
- Civil township: Janes Creek
- USGS Quad: Ravenden Springs
- Lesterville (Unincorporated)
- Located on US 67 at the Lawrence County line
- Latitude & Longitude: 36°09'03" N, 90°57'23" W
- Elevation: 265
- Civil township: Bristow
- USGS Quad: Manson
- Lorine (Unincorporated)
- Located on AR 90 northwest of Pocahontas
- Latitude & Longitude: 36°18'25" N, 91°01'57" W
- Elevation: 477
- Civil township: Shiloh
- USGS Quad: Ravenden Springs SE
- Manson (Unincorporated)
- Located on CR 610 just west of US 67, south of Pocahontas
- Latitude & Longitude: 36°11'39" N, 90°57'45" W
- Elevation: 267
- Civil township: Bristow
- USGS Quad: Manson
- Maynard (Town)
- Population: 381 (Change since 1990: +7.6%)
- Located at intersection AR 115 and AR 328 north east of Pocahontas
- Latitude & Longitude: 36°25'11" N, 90°53'50" W
- Middlebrook (Unincorporated)
- Located on AR 115 northwest of Maynard
- Latitude & Longitude: 36°27'31" N, 90°55'34" W
- Elevation: 429
- Civil township: Siloam
- USGS Quad: Maynard
- Minorca (Unincorporated)
- Located on AR 166 near the Missouri state line
- Latitude & Longitude: 36°29'39" N, 90°50'46" W
- Survey: T. 21 N., R. 2 E., Sec. 3
- Elevation: 350
- Civil township: Little Black
- USGS Quad: Supply
- Mock (Unincorporated)
- Located between Ingram and Middlebrook
- Latitude & Longitude: 36°26'45" N, 90°58'10" W
- Elevation: 430
- Civil township: Ingram
- USGS Quad: Maynard
- Map: 1914
- Noland (Unincorporated)
- Located on AR 166 north of Davidsonville
- Latitude & Longitude: 36°11'36" N, 91°03'02" W
- Survey: T. 18 N., R. 1 W., Sec. 23
- Elevation: 380
- Civil township: East Roanoke
- USGS Quad: Noland
- Oconee (Unincorporated)
- Latitude & Longitude: 36°23'21" N, 91°08'50" W
- Elevation: 380
- Civil township: Dalton
- USGS Quad: Dalton
- O'Kean (Town)
- Population: 201 (Change since 1990: -19.6%)
- Located at junction AR 34 and AR 90 in the far southeast corner
of the county
- Latitude & Longitude: 36°10'09" N, 90°48'51" W
- Old Reyno (Unincorporated)
- Latitude & Longitude: 36°19'55" N, 90°45'35" W
- Elevation: 285
- Civil township: Reyno
- USGS Quad: Reyno
- Old Siloam (Unincorporated)
- Latitude & Longitude: 36°27'11" N, 90°54'16" W
- Elevation: 430
- Civil township: Siloam
- USGS Quad: Maynard
- Palestine (Unincorporated)
- Latitude & Longitude: 36°25'57" N, 91°00'23" W
- Elevation: 434
- Civil township: Ingram
- USGS Quad: Warm Springs (Shows Palestine Church)
- Pitman (Unincorporated)
- Located on CR 275/Pitman Road northeast of Supply
- Latitude & Longitude: 36°28'42" N, 90°49'21" W
- Survey: T. 21 N., R. 2 E., Sec. 11
- Elevation: 420
- Civil township: Little Black
- USGS Quad: Supply
- Pocahontas (City)
- Population: 6,518 (Change since 1990: +6.0%)
- Located at the western junction of US 62 and US 67 on the Black River
- Latitude & Longitude: 36°15'41" N, 90°58'16" W
- Poluca (Unincorporated)
- Latitude & Longitude: 36°17'35" N, 90°54'48" W
- Elevation: 265
- Civil township: Running Lake
- USGS Quad: Pocahontas (Not shown)
- Ravenden Springs (Town)
- Population: 137 (Change since 1990: +4.6%)
- Located at intersection AR 90 and CR 433/Upper Janes Creek Road
north of Ravenden
- Latitude & Longitude: 36°18'59" N, 91°13'21" W
- Reyno (Town)
- Population: 484 (Change since 1990: +3.6%)
- Located near junction US 67 and AR 328 on the Clay County line
- Latitude & Longitude: 36°21'46" N, 90°45'13" W
- Running Lake (Unincorporated)
- Latitude & Longitude: 36°17'58" N, 90°53'50" W
- Elevation: 265
- Civil township: Running Lake
- USGS Quad: Pocahontas (Not shown)
- Shannon (Unincorporated)
- Located at southern junction US 67 and AR 90 south of Pocahontas
- Latitude & Longitude: 36°12'32" N, 90°57'29" W
- Elevation: 266
- Civil township: Demun
- USGS Quad: Manson
- Sharum (Unincorporated)
- Located on AR 304 between Pocahontas and Delaplaine
- Latitude & Longitude: 36°13'22" N, 90°51'14" W
- Elevation: 279
- Civil township: O'Kean
- USGS Quad: O'Kean
- Skaggs (Unincorporated)
- Located on AR 304 southeast of Pocahontas
- Latitude & Longitude: 36°14'16" N, 90°54'26" W
- Elevation: 264
- Civil township: Wiley
- USGS Quad: Manson
- Stokes (Unincorporated)
- Located at junction AR 115 and AR 166
- Latitude & Longitude: 36°21'21" N, 90°56'03" W
- Survey: T. 20 N., R. 1 E., Sec. 23, 26
- Elevation: 330
- Civil township: Columbia
- USGS Quad: Pocahontas
- Stoney Point (Unincorporated)
- Latitude & Longitude: 36°18'55" N, 91°04'38" W
- Elevation: 434
- Civil township: Shiloh
- USGS Quad: Ravenden Springs SE
- Supply (Unincorporated)
- Located on AR 166 northeast of Maynard
- Latitude & Longitude: 36°27'25" N, 90°50'29" W
- Elevation: 420
- Civil township: Little Black
- USGS Quad: Supply
- Warm Springs (Unincorporated)
- Located on AR 251 near the Missouri state line
- Latitude & Longitude: 36°28'49" N, 91°03'05" W
- Survey: T. 21 N., R. 1 W., Sec. 11
- Elevation: 440
- Civil township: Warm Springs
- USGS Quad: Warm Springs
- Watervalley (Unincorporated)
- Latitude & Longitude: 36°18'36" N, 91°07'52" W
- Elevation: 365
- Civil township: Water Valley
- USGS Quad: Ravenden Springs
- Yadkin (Unincorporated)
- Located somewhere north of Ravenden Springs
- Latitude & Longitude: 36°22'29" N, 91°14'40" W
- Elevation: 460
- Civil township: Janes Creek
- USGS Quad: Ravenden Springs
- Map: 1914
Name origin
Named for John Randolph
| Year | Population | Percent change |
|---|
| 1840 | 2,196 | -- |
| 1850 | 3,275 | +49.1% |
| 1860 | 6,261 | +91.2% |
| 1870 | 7,466 | +19.2% |
| 1880 | 11,724 | +57.0% |
| 1890 | 14,485 | +23.5% |
| 1900 | 17,156 | +18.4% |
| 1910 | 18,987 | +10.7% |
| 1920 | 17,713 | -6.7% |
| 1930 | 16,871 | -4.8% |
| 1940 | 18,319 | +8.6% |
| 1950 | 15,982 | -12.8% |
| 1960 | 12,520 | -21.7% |
| 1970 | 12,645 | +1.0% |
| 1980 | 16,834 | +33.1% |
| 1990 | 16,558 | -1.6% |
| 2000 | 18,195 | +9.9% |