1850 Counties of Arkansas
| County | Description | Area in sq miles | Courts held at | Pop in 1850 |
| Arkansas | southeast part, , water by Arkansas, White & Bosuf Rivers & Bayou Barthelany | 2400 | Arkansas | 3,246 |
| Ashley | southeast part between Bayou Bartholomew & Saline river | blank | Hamburgh | 2,058 |
| Barthlolomew | no description | blank | blank | not given |
| Benton | in NW corner, water by White river & branches of Neosho | 1,050 | Bentonville | 3,710 |
| Carroll | north boundary | 1650 | Carrollton | 4,614 |
| Chicot | southeast corner, on west side of Mississippi river | 1800 | Columbia | 5,115 |
| Clark | southwest part, between Little Missouri & Wachita rivers | 1500 | Greenville | 4,011 |
| Conway | central part, on north side of Arkansas river | 1025 | Lewisburgh | 3,583 |
| Crawford | western boundary, crossed by Arkansas river | 780 | Van Buren | 7,960 |
| Crittenden | eastern boundary between Mississippi & St Francis rivers | 2100 | Marion | 2,648 |
| Dallas | southern part between Wachita & Saline rivers | blank | Princeton | 6,877 |
| Desha | southeast part, Mississippi river on east & crossed by Arkansas & White rivers | 800 | Dellville | 2,920 |
| Drew | southeastern part, Sabine river of west | blank | Monticello | 3,275 |
| Franklin | north western part, crossed by Arkansas river | 800 | Ozark | 3,500 |
| Fulton | northern boundary | blank | Pilot Hill | 1,819 |
| Greene | northeast corner, St Francis river on east & Cache river on west | 1025 | Gainesville | 2,593 |
| Hempstead | southwest part, Little Missouri on northeast, Red river on southwest | 1150 | Washington | 7,672 |
| Independence | north eastern part, Big Black river on east & crossed by White river | 1250 | Batesville | 7,767 |
| Hot Springs | near central part, Saline river on east, crossed by Wachita river | 1980 | Hot Springs | 3,609 |
| Izard | northern part, crossed by White river | 1600 | Izard | 3,213 |
| Jackson | north east part, Big Black and White rivers on west, Cache river on east | 800 | Elizabeth | 3,086 |
| Jefferson | south eastern part, crossed by Arkansas river | 1180 | Pine Bluffs | 5,834 |
| Johnson | northwest part, crossed by Arkansas river | 900 | Clarksville | 5,227 |
| Lafayette | southwest corner, crossed by Red river | 1260 | Lewisville | 5,220 |
| Lawrence | northern boundary, crossed by Big Black river | 1300 | Smithville | 5,271 |
| Madison | northern boundary | 1050 | Huntsville | 4,823 |
| Marion | northern boundary, crossed by White river | 800 | Yellville | 2,302 |
| Mississippi | eastern boundary, Mississippi river on east & St Francis river on west, crossed by Whitewater river | 1000 | Osceola | 2,368 |
| Monroe | eastern part, crossed by White river | 1150 | Lawrenceville | 2,049 |
| Montgomery | western part | blank | Montgomery | 1,958 |
| Newton | toward northwestern part | blank | blank | 1,758 |
| Perry | central part, Arkansas river on northeast | blank | Perryville | 978 |
| Philips | eastern boundary, Mississippi river on east, crossed by St Francis river | 730 | Helena | 6,935 |
| Pike | southwestern part | 500 | Murfreesborough | 1,861 |
| Poinsett | northeastern part, St Francis river on east | blank | Bolivar | 2,308 |
| Polk | western boundary | blank | Liberty | 1,263 |
| Pope | northwest part, Arkansas river on the south | 720 | Narristown | 4,710 |
| Prairie | central part | blank | Brownsville | 2,097 |
| Pulaski | central part, crossed by Arkansas river | 2050 | Little Rock, also Capital | 5,658 |
| Randolph | north boundary, crossed by Big Black river | 820 | Pocahontas | 3,275 |
| St Francis | in eastern part, White river on west, St Francis river on east | 1080 | Mount Vernon | 4,479 |
| Saline | central part | 720 | Benton | 3,901 |
| Scott | west boundary | 950 | Booneville | 3,083 |
| Searcy | in northern part, White river on northeast | 850 | Lebanon | 1,929 |
| Sebastian | no description | blank | blank | abt 4,000 |
| Sevier | on western boundary, Red river on south | 1000 | Paraclifta | 3,453 |
| Union | on southern boundary, Wachita river on east | 2600 | El Dorado | 10,298 |
| Van Buren | toward north part | 1350 | Clinton | 2,864 |
| Wachita | southern part, crossed by Wachita river | blank | Camden | 3,304 |
| Washington | on west boundary | 900 | Fayetteville | 9,567 |
| White | toward northeast part, White river on east | 1000 | Searcy | 2,619 |
| Yell | in western part, Arkansas river on northeast | 936 | Danville | 3,341 |