{"id":6768,"date":"2023-08-17T13:16:47","date_gmt":"2023-08-17T13:16:47","guid":{"rendered":"https:\/\/townsvillages.com\/us\/?p=6768"},"modified":"2026-08-20T19:23:48","modified_gmt":"2026-08-20T19:23:48","slug":"sioux-county-north-dakota","status":"publish","type":"post","link":"https:\/\/townsvillages.com\/us\/sioux-county-north-dakota\/","title":{"rendered":"Sioux County, North Dakota"},"content":{"rendered":"<p>Sioux County is a county in North Dakota, United States, lying along the state&#8217;s southern border and forming the entire North Dakota portion of the Standing Rock Sioux Reservation &mdash; the only county in the state contained wholly within a single reservation. It had a population of 3,898 at the 2020 census and covers 1,128 square miles (2,922 km2), of which 1,094 square miles are land and 34 square miles are water, centred near 46&deg;06&prime;N 101&deg;03&prime;W.<\/p>\n<p>Fort Yates is the county seat, and its postal code is 58538. The county has three incorporated towns, two census-designated places, and no organized civil townships. Part of the county runs on Central time and part on Mountain time, and its FIPS code is 38085.<\/p>\n<h2>Towns &amp; Villages in Sioux County<\/h2>\n<p>Sioux County has five populated communities carried on the U.S. Census Bureau&#8217;s rolls &mdash; three incorporated towns and two unincorporated\/census-designated places (CDPs). The list below carries over the names from the county&#8217;s earlier settlement list, all of which correspond to real, currently recognized places.<\/p>\n<div class=\"tv-table-scroll\">\n<table>\n<thead>\n<tr>\n<th>Place<\/th>\n<th>Type<\/th>\n<th>Pop.<\/th>\n<th>ZIP<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Fort Yates<\/td>\n<td>City &middot; seat<\/td>\n<td>&mdash;<\/td>\n<td>58538<\/td>\n<\/tr>\n<tr>\n<td>Cannon Ball<\/td>\n<td>CDP<\/td>\n<td>&mdash;<\/td>\n<td>58528<\/td>\n<\/tr>\n<tr>\n<td>Selfridge<\/td>\n<td>City<\/td>\n<td>&mdash;<\/td>\n<td>58568<\/td>\n<\/tr>\n<tr>\n<td>Solen<\/td>\n<td>City<\/td>\n<td>&mdash;<\/td>\n<td>58570<\/td>\n<\/tr>\n<tr>\n<td>Porcupine<\/td>\n<td>CDP<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>The old list also carried &#8220;Chadwick,&#8221; a rural crossroads locality near Fort Yates rather than a current Census-recognized place; it is omitted here for lack of a verifiable population or ZIP.<\/p>\n<h2>ZIP Codes<\/h2>\n<ul>\n<li>58538 &mdash; Fort Yates (also serves the surrounding reservation land)<\/li>\n<li>58528 &mdash; Cannon Ball<\/li>\n<li>58568 &mdash; Selfridge<\/li>\n<li>58570 &mdash; Solen<\/li>\n<\/ul>\n<p>Porcupine is a small unincorporated community without its own post office and is generally served by one of the neighboring ZIPs above.<\/p>\n<h2>Geography<\/h2>\n<p>Sioux County sits on North Dakota&#8217;s southern border, in mixed-grass prairie broken by the Missouri River valley along its eastern edge, where Lake Oahe backs up the river into a broad reservoir. The terrain west of the river rises into rolling, largely treeless plains typical of the Missouri Plateau. Water covers about 3 percent of the county&#8217;s area, mostly the river and its bays.<\/p>\n<p>Sioux County borders <a href=\"https:\/\/townsvillages.com\/us\/morton-county-north-dakota\/\">Morton County<\/a> to the north, <a href=\"https:\/\/townsvillages.com\/us\/emmons-county\/\">Emmons County<\/a> to the east, <a href=\"https:\/\/townsvillages.com\/us\/grant-county-north-dakota\/\">Grant County<\/a> to the northwest, <a href=\"https:\/\/townsvillages.com\/us\/adams-county-north-dakota\/\">Adams County<\/a> to the west, and Corson County, South Dakota, across the state line to the south.<\/p>\n<h2>Demographics<\/h2>\n<p>The 2020 census counted 3,898 residents. Cannon Ball and Fort Yates are the county&#8217;s two largest communities. Sioux County&#8217;s population is overwhelmingly Native American, reflecting its status as reservation land; median household income runs well below the North Dakota median of $76,525, consistent with conditions across the Standing Rock Reservation. Population density is about 3.6 people per square mile, among the lowest in the state.<\/p>\n<h2>Economy &amp; Local Life<\/h2>\n<p>The Standing Rock Sioux Tribe is the county&#8217;s largest institutional presence, operating tribal government offices, Standing Rock Community College, and tribal health and housing programs from Fort Yates. Ranching and small-scale farming occupy much of the private and tribal trust land, and the Missouri River supports fishing and recreation around Lake Oahe. Government employment &mdash; tribal, federal (Bureau of Indian Affairs), and county &mdash; is the leading source of jobs.<\/p>\n<h2>History<\/h2>\n<p>Sioux County was created on September 3, 1914, and organized on September 12, 1914, taking its name from the Sioux people whose reservation land makes up the entire county. Fort Yates, the county seat, began as a U.S. Army post established in 1863 and later became the Standing Rock Indian Agency; it was also, briefly, the burial site of Sitting Bull before his remains were moved to Mobridge, South Dakota, in 1953. The county&#8217;s fortunes have long been tied to the reservation&#8217;s governance, treaty history, and, more recently, the 2016&ndash;2017 Dakota Access Pipeline protests centered near Cannon Ball.<\/p>\n<h2>Getting There<\/h2>\n<p>ND Highway 24 and ND Highway 1806 are the main routes through the county, with ND-6, ND-31, and ND-49 serving outlying areas.<\/p>\n<ul>\n<li>Bismarck &mdash; about 35 miles north via ND-1806<\/li>\n<li>Mandan &mdash; about 30 miles north<\/li>\n<li>McLaughlin, South Dakota &mdash; about 20 miles south<\/li>\n<li>Linton &mdash; about 40 miles east<\/li>\n<\/ul>\n<p>Bismarck Airport is the nearest commercial airport, roughly 40 miles from Fort Yates. There is no Amtrak service in the county.<\/p>\n<h2>Frequently Asked Questions<\/h2>\n<p><strong>Where is Sioux County, North Dakota?<\/strong><br \/>\nIt lies on North Dakota&#8217;s southern border, southwest of Bismarck, entirely within the Standing Rock Sioux Reservation.<\/p>\n<p><strong>What is the population of Sioux County?<\/strong><br \/>\nThe 2020 census recorded 3,898 residents.<\/p>\n<p><strong>How big is Sioux County?<\/strong><br \/>\nIt covers 1,128 square miles (2,922 km2), including 34 square miles of water.<\/p>\n<p><strong>What is the county seat of Sioux County?<\/strong><br \/>\nFort Yates is the county seat.<\/p>\n<p><strong>How many towns are in Sioux County?<\/strong><br \/>\nThree incorporated cities &mdash; Fort Yates, Selfridge, and Solen &mdash; plus the census-designated places of Cannon Ball and Porcupine.<\/p>\n<p><strong>What ZIP codes are in Sioux County?<\/strong><br \/>\n58538 (Fort Yates), 58528 (Cannon Ball), 58568 (Selfridge), and 58570 (Solen).<\/p>\n<p><strong>Is Sioux County part of a reservation?<\/strong><br \/>\nYes &mdash; it is the only county in North Dakota located entirely within a single Indian reservation, the Standing Rock Sioux Reservation.<\/p>\n<p>More counties in this state: <a href=\"https:\/\/townsvillages.com\/us\/category\/north-dakota\/\">Towns and villages in North Dakota<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sioux County is a county in North Dakota, United States, lying along the state&#8217;s southern border and forming the entire North Dakota portion of the Standing Rock Sioux Reservation &mdash; the only county in the state contained wholly within a single reservation. It had a population of 3,898 at the 2020 census and covers 1,128 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"Towns & Villages in Sioux County, North Dakota","_seopress_titles_desc":"Sioux County, ND: population, towns (Fort Yates, Cannon Ball, Selfridge, Solen), ZIP codes, geography, history and FAQs.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[41],"tags":[6],"class_list":["post-6768","post","type-post","status-publish","format-standard","category-north-dakota","tag-towns-and-cities","entry"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/townsvillages.com\/us\/wp-json\/wp\/v2\/posts\/6768","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/townsvillages.com\/us\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/townsvillages.com\/us\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/townsvillages.com\/us\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/townsvillages.com\/us\/wp-json\/wp\/v2\/comments?post=6768"}],"version-history":[{"count":2,"href":"https:\/\/townsvillages.com\/us\/wp-json\/wp\/v2\/posts\/6768\/revisions"}],"predecessor-version":[{"id":10533,"href":"https:\/\/townsvillages.com\/us\/wp-json\/wp\/v2\/posts\/6768\/revisions\/10533"}],"wp:attachment":[{"href":"https:\/\/townsvillages.com\/us\/wp-json\/wp\/v2\/media?parent=6768"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/townsvillages.com\/us\/wp-json\/wp\/v2\/categories?post=6768"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/townsvillages.com\/us\/wp-json\/wp\/v2\/tags?post=6768"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}