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Best Internet Providers in South Dakota for 2026  | Speedtest

South Dakota, United States has a median mobile download speed of 230.38 and a median fixed broadband download speed of 288.94.

description

html/55/de/55defd09-87fb-4b5e-b705-71f21fcc7910_nodriver.html.gz

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  if ("fonts" in document) {
    Promise.all([
      (new FontFace("Montserrat",
        "url('/s/fonts/Montserrat-VariableFont_wght-hint-all.woff2') format('woff2-variations')",
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      (new FontFace("Montserrat",
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    ]).then(function (fonts) {
      fonts.forEach(function (font) {
        document.fonts.add(font);
      });
    });
  }


Best Internet Providers in South Dakota for 2026

Internet Speed performance in regions and cities across the globe.

Speedtest.net Performance Directory

South Dakota, United States Internet Speeds

Internet Performance by Provider

Internet Speed performance in regions and cities across the globe. Updated regularly based on millions of consumer-initiated tests taken every day with Speedtest.

Speedtest Performance Directory

Home

Country

State

United States

South Dakota

if (typeof goToPostalCodePage === 'undefined') { // check if the function is already defined
 function goToPostalCodePage(id) {
 const zipCodeInputId = `zip-code-search-input-${id}`;
 const zipCodeErrorMessageId = `zip-code-search-error-message-${id}`;
 const userInput = document.getElementById(zipCodeInputId).value;
 const zipCodeRegex = /^\d{5}$/;
 if (zipCodeRegex.test(userInput)) {
 fetch(`/places/validate/${userInput}`)
 .then(response => {
 if (response.status === 200) {
 // Send user to new zip specific page
 // The below code for encoding URI is copied and pasted from performance.js so it can be used client-side
 window.location.href = encodeURI(`/performance/${userInput}`)
 .replace(/%5B/g, '[')
 .replace(/%5D/g, ']')
 .replace(/[!'()*]/g, (c) => `%${c.charCodeAt(0).toString(16).toUpperCase()}`);
 } else {
 document.getElementById(zipCodeErrorMessageId).innerHTML =
 "Sorry, we don’t have enough data about this zip code. Try searching for another nearby zip, or browsing by state.";
 document.getElementById(zipCodeInputId).classList.add("form-error");
 }
 })
 .catch(() => {
 document.getElementById(zipCodeErrorMessageId).innerHTML =
 "An error occurred while validating the zip code. Please retry.";
 document.getElementById(zipCodeInputId).classList.add("form-error");
 });
 } else {
 // Input is not valid, display an error message
 document.getElementById(zipCodeErrorMessageId).innerHTML =
 "Sorry, this doesn't appear to be a valid 5-digit zip code. Please check your entry and try again.";
 document.getElementById(zipCodeInputId).classList.add("form-error");
 }
 }
}

$(function () {
  var $allControls = $('.performance-controls');
  initControls($allControls);

  // listen for toggle click
  $allControls.on('click', 'a[data-target]', function (e) {
    var $clicked = $(e.target).closest('a[data-target]');
    handleToggle($clicked);
    return false;
  });

  function moveDivider ($clicked) {
    var $divider = $clicked
      .closest('.performance-controls')
      .find('.performance-controls-divider');
    // move divider to correct position
    // control must be visible for outerWidth or position to work
    $divider.stop().fadeIn(0);
    $divider.css({
      'opacity': 1,
      'width': $clicked.outerWidth(),
      'left': $clicked.position().left,
    });
    // 150 matches @animation-speed in variables.less
    // delay slightly longer than that to prevent blinking
    $divider.stop().delay(200).fadeOut(0);
  }

  // do the work when the toggle is clicked
  function handleToggle ($clicked) {
    let nextToggle;
    if($clicked[0].innerHTML === "Mobile") {
      nextToggle = "fixed"
    } else if($clicked[0].innerHTML === "Fixed") {
      nextToggle = "mobile"
    } else if($clicked[0].innerHTML === "Download") {
      nextToggle = "upload"
    } else if($clicked[0].innerHTML === "Upload") {
      nextToggle = "download"
    }
    // set active class on button
    $clicked
      .closest('.performance-controls')
      .find('a[data-target]')
      .removeClass('active')
      .attr('aria-label', `Switch to ${nextToggle} speeds`)
      .attr('title', `Switch to ${nextToggle} speeds`)
    $clicked.addClass('active');
    $clicked.attr('aria-label', `Currently viewing ${$clicked[0].innerHTML.toLowerCase()} speeds`)
    $clicked.attr('title', `Currently viewing ${$clicked[0].innerHTML.toLowerCase()} speeds`)
    // fancy sliding animation
    moveDivider($clicked);
    // show/hide sections
    showTarget($clicked);
  }

  // toggle section according to data-target attribute
  function showTarget ($clicked) {
    $clicked
      .closest('.performance-controls')
      .find('a[data-target]')
      .each(function () {
        $($(this).data('target')).hide();
      });
    var $target = $($clicked.data('target'));
    $target.show();
  }

  // init each toggle control
  function initControls ($allControls) {
    // enable fancy styling
    $allControls.addClass('performance-controls-js');
    // make the first toggle in each group the active one
    // loop through these in reverse so no child controls are hidden the first time through
    // this allows the dividers to get the proper starting positions
    $($allControls.get().reverse()).each(function (i) {
      handleToggle($(this).find('a[data-target]').eq(0));
    });
  }
});


// populate the charts
$(function () {

 var placeType = 'region';

 // escape single quotes here as they come back from i18next, that way
 // you can escape place names and the localized strings at the same time.
 // these values are used in js, so the single quotes must be escaped.
 var historicalRangeLabels = {
 x: 'Monthly data from January 2025 through January 2026',
 y: {
 download: 'Median Download speeds in Mbps',
 upload: 'Median Upload speeds in Mbps',
 }
 }
 var providerRangeLabels = {
 x: 'Monthly data from July 2025 through December 2025',
 y: {
 download: 'Median Download speeds in Mbps',
 }
 }
 var legendLabels = {
 place: {
 mobile: {
 download: 'South Dakota Median Download',
 upload: 'South Dakota Median Upload',
 },
 fixed: {
 download: 'South Dakota Median Download',
 upload: 'South Dakota Median Upload',
 },
 },
 region: {
 mobile: {
 download: 'South Dakota Median Download',
 upload: 'South Dakota Median Upload',
 },
 fixed: {
 download: 'South Dakota Median Download',
 upload: 'South Dakota Median Upload',
 },
 },
 };

 var placeMonthlyData = [{"period":"2026-01-01","mobile_median_download_mbps":230.38,"mobile_median_upload_mbps":16.57,"mobile_median_latency_ms":32,"fixed_median_download_mbps":288.94,"fixed_median_upload_mbps":60.76,"fixed_median_latency_ms":9},{"period":"2025-12-01","mobile_median_download_mbps":225.45,"mobile_median_upload_mbps":16.41,"mobile_median_latency_ms":33,"fixed_median_download_mbps":263.09,"fixed_median_upload_mbps":57.67,"fixed_median_latency_ms":10},{"period":"2025-11-01","mobile_median_download_mbps":205.16,"mobile_median_upload_mbps":14.99,"mobile_median_latency_ms":34,"fixed_median_download_mbps":273.31,"fixed_median_upload_mbps":60.09,"fixed_median_latency_ms":9},{"period":"2025-10-01","mobile_median_download_mbps":178.55,"mobile_median_upload_mbps":12.64,"mobile_median_latency_ms":34,"fixed_median_download_mbps":269.86,"fixed_median_upload_mbps":57.28,"fixed_median_latency_ms":9},{"period":"2025-09-01","mobile_median_download_mbps":167.7,"mobile_median_upload_mbps":11.67,"mobile_median_latency_ms":35,"fixed_median_download_mbps":254.62,"fixed_median_upload_mbps":53.23,"fixed_median_latency_ms":9},{"period":"2025-08-01","mobile_median_download_mbps":151.56,"mobile_median_upload_mbps":11.2,"mobile_median_latency_ms":37,"fixed_median_download_mbps":243.47,"fixed_median_upload_mbps":51.83,"fixed_median_latency_ms":10},{"period":"2025-07-01","mobile_median_download_mbps":152.09,"mobile_median_upload_mbps":10.85,"mobile_median_latency_ms":37,"fixed_median_download_mbps":222.9,"fixed_median_upload_mbps":48.5,"fixed_median_latency_ms":10},{"period":"2025-06-01","mobile_median_download_mbps":141.6,"mobile_median_upload_mbps":10.64,"mobile_median_latency_ms":36,"fixed_median_download_mbps":225.29,"fixed_median_upload_mbps":51,"fixed_median_latency_ms":10},{"period":"2025-05-01","mobile_median_download_mbps":162.71,"mobile_median_upload_mbps":12.66,"mobile_median_latency_ms":34,"fixed_median_download_mbps":238.48,"fixed_median_upload_mbps":53.55,"fixed_median_latency_ms":10},{"period":"2025-04-01","mobile_median_download_mbps":157.08,"mobile_median_upload_mbps":13.8,"mobile_median_latency_ms":35,"fixed_median_download_mbps":246.76,"fixed_median_upload_mbps":55.52,"fixed_median_latency_ms":9},{"period":"2025-03-01","mobile_median_download_mbps":143.33,"mobile_median_upload_mbps":13.33,"mobile_median_latency_ms":34,"fixed_median_download_mbps":252.77,"fixed_median_upload_mbps":55.89,"fixed_median_latency_ms":9},{"period":"2025-02-01","mobile_median_download_mbps":148.15,"mobile_median_upload_mbps":14.55,"mobile_median_latency_ms":32,"fixed_median_download_mbps":248.68,"fixed_median_upload_mbps":52.54,"fixed_median_latency_ms":9},{"period":"2025-01-01","mobile_median_download_mbps":151.67,"mobile_median_upload_mbps":14.6,"mobile_median_latency_ms":34,"fixed_median_download_mbps":237.78,"fixed_median_upload_mbps":51.26,"fixed_median_latency_ms":9}];
 var regionMonthlyData = false;

 //- make sure a location's providers have actual data before attempting to draw a provider chart.
 //- providers from centerfield offers data are merged into the speedtest providers data, regardless
 //- of whether there's a matching provider in the speedtest data.
 var providerMobileData = false;
 var providerFixedData = [{"service":"fixed","provider_name":"Bluepeak","provider_id":160075,"period":"2025-07-01","p25_download_mbps":106.51,"p75_download_mbps":529.75,"p50_download_mbps":269,"p50_upload_mbps":27.78,"p50_multiserver_latency_ms":29.67},{"service":"fixed","provider_name":"Golden West","provider_id":6651,"period":"2025-07-01","p25_download_mbps":48.85,"p75_download_mbps":268.15,"p50_download_mbps":149.89,"p50_upload_mbps":125.12,"p50_multiserver_latency_ms":27.65},{"service":"fixed","provider_name":"Midco","provider_id":151917,"period":"2025-07-01","p25_download_mbps":121.63,"p75_download_mbps":523.56,"p50_download_mbps":271.62,"p50_upload_mbps":66.06,"p50_multiserver_latency_ms":23.53},{"service":"fixed","provider_name":"SpaceX Starlink","provider_id":191656,"period":"2025-07-01","p25_download_mbps":89.44,"p75_download_mbps":272.84,"p50_download_mbps":181.8,"p50_upload_mbps":23.95,"p50_multiserver_latency_ms":41.87}];

 function getProviderNames (data) {
 if(!data) { return }
 return data.map(function (provider) {
 var providerName = provider.provider_name;
 return providerName;
 })
 }

 function transformProviderData (data) {
 if(!data) { return }
 return data.filter((provider) => provider.p50_download_mbps && provider.p25_download_mbps && provider.p75_download_mbps)
 .map(function (provider, i) {
 var median = provider.p50_download_mbps;
 var low = parseInt(provider.p25_download_mbps);
 var high = parseInt(provider.p75_download_mbps);
 return { low, high, median };
 }
 );
 }

 function transformData (type, metric, data) {
 return data.map(function (month) {
 var date = new Date(month.period);
 var key = type + '_median_' + metric + '_mbps'
 return [ date.getTime(), month[key]];
 });
 }

 var marker = {
 symbol: 'circle',
 radius: 0.5,
 };

 var types = [];
 if (false) types.push('mobile');
 if (true) types.push('fixed');

 $.each(types, function (typeIndex, type) {
 var data = type === 'fixed' ? providerFixedData : providerMobileData;
 if (data) {
 var names = getProviderNames(data);
 var providerId = 'performance-graph-provider-' + type + '-' + 'download';
 var providerData = transformProviderData(data);
 var chartHeight = 415;
 if (providerData.length >= 10) {
 chartHeight = 700
 } else if (providerData.length >= 6) {
 chartHeight = 600;
 }
 //- For columnrange charts, position the tooltip at the median point instead of the center.
 //- This is done by wrapping the tooltip's updatePosition function to:
 //- 1) figure out which line is being hovered,
 //- 2) compute where that line's median would be in relation to the range of the chart,
 //- 3) override the tooltip's horizontal position with the median position.
 //- The first step above is definitely the most brittle. Getting the index of the currently
 //- hovered line is done by getting the desired position of the tooltip and comparing it to
 //- each line's "tooltip position" object. If they match, assume this is the correct line.
 //- It's brittle because if the values are overridden at any point (similar to what we are
 //- doing here), no match will be found. Maybe there's a more graceful way to find this
 //- index, but it seems to work ok. Once you have the index, you can access that line's
 //- data, and the rest is more straightforward.
 //- This functionality is "nice-to-have" and can be removed if it causes future problems.
 Highcharts.wrap(Highcharts.Tooltip.prototype, 'updatePosition', function() {
 //- first arg is callback, second arg is a point
 var args = Array.prototype.slice.call(arguments, 1);
 //- only do this for columnrange charts
 if (this.chart.types.length === 1 && this.chart.types[0] === 'columnrange') {
 //- we need the index of the hovered line so we can do math on the data
 //- we can infer the index by comparing the arg's plotY to the series data tooltipPos[1]
 var tooltipPos = this.chart.series[0].data.map(function (data) {
 return data.tooltipPos[1];
 });
 var index = tooltipPos.indexOf(args[0].plotY);
 //- only modify the tooltip position if the line positions match up
 if (index > -1) {
 var median = this.chart.series[0].data[index].median; // the provider's median
 //- make sure the median value exists
 if (median) {
 //- columnrange charts are inverted by default, so y is horizontal
 var yAxis = this.chart.yAxis[0]; // yAxis for the whole chart
 //- compute the ratio of median to series range
 var percent = (median - yAxis.min) / (yAxis.max - yAxis.min);
 //- plotX is usually the center of the range, but it's overwritten here
 //- tooltip position doesn't care if the chart is inverted
 args[0].plotX = yAxis.width * percent; // map ratio to pixels
 }
 }
 }
 arguments[0].apply(this, args); // proceed
 });

 // render provider chart
 Highcharts.chart(providerId, {
 title: {
 text: `Expected speed range (download)`,
 },
 xAxis: {
 categories: names,
 labels: {
 style: {
 color: 'white',
 },
 },
 accessibility: {
 rangeDescription: providerRangeLabels.x,
 },
 },
 tooltip: {
 positioner: function (width, height, point) {
 //- the point's plotX is modified by the updatePosition wrapper above
 return {
 x: this.chart.plotLeft + point.plotX - width / 2,
 y: this.chart.plotTop + point.plotY - height - 10,
 }
 },
 style: {
 color: 'white',
 fontSize: 12
 },
 padding: 4,
 headerFormat: 'Jul 2025 - Dec 2025 ',
 pointFormat: '\u25CF {point.category} Median Download: {point.median} ',
 },
 yAxis: {
 labels: {
 format: '{value:.0f}',
 step: 2,
 },
 softMin: 0,
 title: {
 text: 'Download (Mbps)',
 style: {
 color: 'white'
 }
 },
 accessibility: {
 rangeDescription: providerRangeLabels.y.download,
 },
 },
 chart: {
 styledMode: true,
 type: 'columnrange',
 inverted: true,
 marginBottom: 100,
 renderTo: providerId,
 //- (CT-5858) You must set the chart height or the chart will slowly get taller every time
 //- the viewport changes size, including when a mobile browser shows/hides chrome.
 height: chartHeight,
 },
 plotOptions: {
 series: {
 pointWidth: 3
 },
 columnrange: {
 colorByPoint: true,
 dataLabels: {
 enabled: false
 },
 }
 },
 credits: {
 enabled: false,
 },
 subtitle: {
 align: 'right',
 verticalAlign: 'bottom',
 floating: true,
 text: 'Jul 2025 - Dec 2025',
 },
 legend: {
 enabled: false,
 },
 series: [{
 name: names,
 data: providerData,
 }]
 });
 }

 $.each([ 'download', 'upload' ], function (metricIndex, metric) {
 var metricLabel = (metric === 'download') ? 'Download' : 'Upload';
 var id = 'performance-graph-historical-' + type + '-' + metric;
 var series = [];
 var lineChartColor = '#6afff3';
 var lineChartColorComparison = '#fff38e';
 if(metric === 'upload') {
 lineChartColor = '#bf71ff';
 }
 series.push({
 marker: marker,
 name: legendLabels.place[type][metric],
 data: transformData(type, metric, placeMonthlyData),
 color: lineChartColor
 });

 if (placeType === 'city' || placeType === 'postal-code') {
 series[0].color = lineChartColor;
 series.push({
 marker: marker,
 name: legendLabels.region[type][metric],
 data: transformData(type, metric, regionMonthlyData),
 color: '#fff38e'
 });
 }

 //Locations Chart
 Highcharts.chart(id, {
 title: {
 text: `Historical performance (${metric})`,
 },
 tooltip: {
 dateTimeLabelFormats: {
 day: '%b %Y'
 }
 },
 chart: {
 type: 'spline',
 styledMode: true,
 marginBottom: 100,
 renderTo: id,
 //- (CT-5858) You must set the chart height or the chart will slowly get taller every time
 //- the viewport changes size, including when a mobile browser shows/hides chrome.
 height: 415,
 },
 subtitle: {
 align: 'right',
 verticalAlign: 'bottom',
 floating: true,
 text: 'Jan 2025 - Jan 2026',
 },
 credits: {
 enabled: false,
 },
 xAxis: {
 type: 'datetime',
 labels: {
 format: '{value:%b}',
 },
 title: {
 text: undefined
 },
 accessibility: {
 rangeDescription: historicalRangeLabels.x,
 },
 },
 yAxis: {
 accessibility: {
 // escape single quotes since it's going in a js string
 rangeDescription: historicalRangeLabels.y[metric],
 },
 labels: {
 format: '{value:.2f}',
 step: 2,
 },
 softMin: 0,
 title: {
 text: undefined
 }
 },
 legend: {
 enabled: true,
 align: 'left',
 verticalAlign: 'bottom',
 floating: false,
 padding: 0,
 x: 50,
 },
 series: series
 });
 });
 });
});

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vgo('setAccount', '478502367');
vgo('setTrackByDefault', true);

vgo('process');

Security Scan Report: 12-4xl.pages.dev

Summary

AI Security Verdict

Moderate Risk

Risk Factors

Safety Factors

Details

Screenshot

Page Load Overview

Language Analysis

Primary Language

Detection Details

Website Classification

Primary Category

All Detected Categories

Detected Features

Domain & IP Information

Detected Technologies8

Content Similarity HashesFor malware variant detection

TLSH (Trend Micro Locality Sensitive Hash)

ssdeep (Context Triggered Piecewise Hashing)

sdhash (Similarity Digest Hashing)

Image Hashes

Perceptual Hashes

Other Hashes

Scan History

Requests	IP Address	Location	AS Autonomous System
32	188.114.96.3	United States	AS13335Cloudflare, Inc.
32	1	-	-