PlainCities

Census tracts · St. Charles County

Census tracts in St. Charles County, Missouri

St. Charles County is divided into 85 census tracts. Among the tracts with a reliable estimate, median household income runs from $48,676 in Tract 3105.01 to $170,625 in Tract 3111.03 (ACS 2020-2024 5-year estimates).

Every census tract in St. Charles County

Sort by any column. A tract's number repeats across counties; the GEOID under each name is unique. A ring marks an estimate whose coefficient of variation is over 40%.

Census tracts of St. Charles County, ACS 2020-2024 5-year estimates
Tract 310129183310100West Alton (20%)2,0642,235±323$94,130$213,800$1,1075.9%
Tract 3102.0129183310201St. Charles (96%)6,1877,715±629$116,725$364,000$1,4157.2%
Tract 3102.0229183310202St. Charles (70%)3,6023,144±390$76,950$313,100$1,0559.7%
Tract 3103.0129183310301St. Charles4,0683,830±262$91,969$255,300$1,1187.9%
Tract 3103.0229183310302St. Charles3,9803,847±564$90,774$245,400$9987.8%
Tract 310429183310400St. Charles2,0352,094±264$72,115$211,800$9716.5%
Tract 3105.0129183310501St. Charles3,8724,203±375$48,676$188,700$91715.1%
Tract 3105.0229183310502St. Charles2,4672,345±311$59,754$249,900$1,0784.3%
Tract 3106.0129183310601St. Charles3,7574,398±299$88,125$228,600$1,47110.3%
Tract 3106.0229183310602St. Charles (95%)5,6805,440±736$108,625$285,400$1,1556.6%
Tract 310729183310700St. Charles (98%)5,2324,835±590$58,574$228,000$1,2338.8%
Tract 3108.0129183310801St. Peters (59%)2,4872,679±378$90,841$355,800$1,5492.7%
Tract 3108.0229183310802St. Charles (35%)5,9466,309±711$95,554$251,600$1,3086.3%
Tract 3109.0129183310901St. Charles (81%)2,3751,859±233$71,944$228,600$1,15815.0%
Tract 3109.0229183310902St. Charles (73%)5,3184,862±774$81,786$314,500$1,2665.6%
Tract 3109.0329183310903St. Charles (54%)4,0513,935±460$87,347$329,000$1,3459.0%
Tract 3110.0129183311001St. Charles (51%)4,2714,782±710$93,963$272,300$1,5404.3%
Tract 3110.0329183311003St. Charles (84%)3,1493,082±315$73,054$314,800$1,5176.8%
Tract 3110.0429183311004St. Charles (53%)5,7365,219±417$72,070$219,600$1,3413.5%
Tract 3111.0329183311103Weldon Spring (66%)6,5336,647±612$170,625$490,100$3,3911.7%
Tract 3111.1429183311114Cottleville (26%)5,2535,566±524$112,259$369,600$2,0411.2%
Tract 3111.2229183311122St. Peters (28%)7,3017,187±641$98,468$332,300$1,5854.2%
Tract 3111.2429183311124O'Fallon (48%)6,9077,248±929$128,542$344,000$1,7412.1%
Tract 3111.3229183311132–3,4993,687±560$149,741$435,100not published3.1%
Tract 3111.4529183311145St. Peters (20%)4,3884,302±396$128,409$389,400$8347.3%
Tract 3111.4629183311146St. Charles (25%)4,4884,570±470$104,132$366,200$1,2412.9%
Tract 3111.4729183311147St. Peters (35%)4,0314,009±455$111,776$277,100$1,1584.7%
Tract 3111.4829183311148–4,3174,035±397$134,815$364,500$1,9053.8%
Tract 3111.4929183311149St. Peters (32%)3,8354,316±1,015$84,719$227,200$1,9617.5%
Tract 3111.5029183311150–4,7205,020±558$114,667$337,000$1,8312.2%
Tract 3111.5129183311151O'Fallon (49%)6,4136,143±569$136,818$469,900$1,3871.8%
Tract 3111.5229183311152Dardenne Prairie (51%)4,5904,144±498$132,647$368,800$2,0000.4%
Tract 3111.5329183311153O'Fallon (84%)6,8867,522±890$107,841$352,500$1,4613.2%
Tract 3111.5429183311154O'Fallon (67%)5,3875,277±520$133,013$404,400not published6.9%
Tract 3112.0329183311203St. Peters6,1545,795±461$100,453$247,600$1,2156.0%
Tract 3112.1129183311211St. Charles (51%)5,4705,524±676$78,256$321,800$1,2335.2%
Tract 3112.1229183311212St. Peters (57%)4,2434,654±1,056$110,714$298,400$1,5733.2%
Tract 3112.2129183311221St. Peters (67%)3,6133,548±515$96,576$308,200$9428.8%
Tract 3112.9429183311294St. Peters (88%)3,8264,346±487$105,206$288,900$1,8405.3%
Tract 3112.9629183311296St. Peters (95%)4,1104,029±299$95,982$267,500$2,0088.5%
Tract 3113.1129183311311St. Peters5,8806,079±721$91,434$266,000$1,2841.6%
Tract 3113.1229183311312St. Peters (71%)7,4177,935±1,056$101,967$280,200$8674.1%
Tract 3113.2229183311322Cottleville (47%)6,7876,089±579$107,641$346,000$1,6572.2%
Tract 3113.3129183311331St. Peters (2%)4,6314,419±485$98,929$267,900$1,6292.4%
Tract 3113.9129183311391St. Peters (88%)4,8315,058±620$105,439$265,000$2,0287.1%
Tract 3114.2229183311422St. Peters (78%)6,0356,356±646$88,979$243,100$1,5088.2%
Tract 311529183311500St. Charles (34%)2,2052,087±285$49,182$22,800$1,11611.7%
Tract 3116.0229183311602O'Fallon (97%)5,9805,476±650$86,426$257,200$1,40314.5%
Tract 3116.0329183311603O'Fallon (92%)2,7803,271±730$82,840$272,300$1,10610.7%
Tract 3116.0429183311604O'Fallon (85%)3,1643,101±458$98,403$340,400$8601.2%
Tract 3117.1229183311712O'Fallon (70%)4,8895,502±892$107,479$322,800$1,3924.6%
Tract 3117.2129183311721O'Fallon (18%)3,7654,095±573$129,656$323,100$1,8311.1%
Tract 3117.3229183311732O'Fallon (61%)7,0746,808±665$110,250$263,400$1,4213.1%
Tract 3117.3329183311733O'Fallon (70%)2,2722,043±298$88,672$269,100$1,2404.8%
Tract 3117.3429183311734O'Fallon (71%)4,2333,836±400$103,258$269,200$1,8672.6%
Tract 3117.3529183311735O'Fallon (74%)5,9705,698±391$149,625$353,600$2,1322.0%
Tract 3117.3729183311737O'Fallon (96%)3,4612,832±231$117,422$380,600$8281.3%
Tract 3117.3829183311738O'Fallon (46%)4,4654,350±585$71,914$237,700$1,27511.7%
Tract 3117.3929183311739O'Fallon (83%)4,5514,486±545$139,487$416,300not published2.4%
Tract 3117.4029183311740Cottleville (47%)2,0962,196±423$154,313$446,100$1,3753.4%
Tract 3118.0129183311801O'Fallon (51%)6,2506,261±911$108,386$285,900$1,6082.7%
Tract 3118.0229183311802O'Fallon (81%)6,2206,264±686$88,320$286,800$1,1287.8%
Tract 3119.0329183311903Lake St. Louis (81%)6,0306,294±696$115,428$338,900$1,4043.7%
Tract 3119.0429183311904Dardenne Prairie (49%)6,4627,234±584$120,647$420,100$1,6134.4%
Tract 3119.0729183311907O'Fallon (81%)6,2236,021±725$65,052$223,200$1,45915.4%
Tract 3119.0829183311908Lake St. Louis (75%)4,4755,979±559$144,625$445,900$2,2115.0%
Tract 3119.0929183311909Lake St. Louis (88%)5,1745,169±546$155,570$455,100$1,8393.2%
Tract 3120.0129183312001St. Paul (24%)3,2283,629±436$160,368$444,000not published1.2%
Tract 3120.0229183312002Wentzville (52%)4,2214,293±521$122,445$327,300$1,4094.8%
Tract 3120.0329183312003Wentzville (30%)6,9387,344±724$109,000$381,500$1,7542.1%
Tract 3120.9429183312094Wentzville (75%)5,7656,118±532$100,580$296,800$1,38310.2%
Tract 3120.9529183312095Wentzville (30%)6,4707,866±769$124,194$360,000$1,3656.2%
Tract 3120.9629183312096Wentzville (77%)9,0269,592±859$119,517$348,700$8966.0%
Tract 3121.9229183312192Wentzville (59%)6,2667,366±1,083$118,923$379,100$2,0203.0%
Tract 3121.9329183312193Wentzville (83%)8,9158,743±717$128,085$347,700$7903.1%
Tract 3121.9429183312194Wentzville (73%)3,4883,850±864$109,441$370,700$2,0113.8%
Tract 3121.9529183312195Wentzville (98%)3,3183,474±396$52,461$213,100$1,2848.1%
Tract 3122.0429183312204Augusta (18%)5,1555,183±679$149,841$501,200$1,2763.4%
Tract 3122.0629183312206New Melle (18%)4,7214,966±523$142,484$493,900$1,5334.9%
Tract 3122.0729183312207O'Fallon (57%)4,2864,404±447$93,070$226,700$1,47112.7%
Tract 3122.0829183312208O'Fallon (65%)5,1184,912±577$142,841$368,500not published1.3%
Tract 3122.0929183312209O'Fallon (56%)4,4895,590±771$165,417$491,100not published2.0%
Tract 312329183312300St. Peters (49%)2,7302,702±332$138,618$350,400not published3.4%
Tract 312429183312400St. Peters (65%)5,5555,173±477$49,737$172,100$1,0597.4%
Tract 980029183980000O'Fallon (7%)129±11not publishednot publishednot published0.0%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); place = the place holding most of the tract's 2020 census blocks · Check it at data.census.gov

How these figures are made: methodology and release checks · reading a margin of error · every state · corrections