South Wilton, CT population, income and ZIP codes

South Wilton CDP is a small town in Connecticut, with 1,453 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #141 of 215 ranked by population — larger than 34% of them. The median age here is 47.3 years against 39.1 nationally, a markedly older profile that usually tracks retirees staying put and younger households leaving for work. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.

Households in South Wilton CDP earn a median of $157,446 a year, 100.5% above the national figure of $78,538 and 63% above the $96,484 median for the 159 Connecticut cities we cover. Median household income counts every pre-tax dollar arriving at an address — wages, self-employment, Social Security, pensions, interest and public assistance — for everyone living there, so multi-earner households pull the figure up even where individual pay is modest. Poverty reaches 4% of residents here, less than half the 12.4% national rate.

The typical owner-occupied home in South Wilton CDP is valued at $780,800, 157.4% above the national figure and 127% above the $344,200 peer median, while median gross rent runs not published a month. The home-price-to-income ratio works out to 5×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 74.3% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.

The Census withheld gross rent for South Wilton CDP because the sample was too thin to publish at this geography. Those values were suppressed at the source, not lost in our dataset, and we do not model a replacement. Everything else on this page comes straight from the ACS 2019-2023 ACS 5-year tables.