| City: | Lake Delton, Wisconsin |
| County: | Sauk County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 7:27:56 AM |
| Population: | 18 [See All] |
| Area Codes: | 353 / 608 |
| Classification: | PO Box |
| Coordinates: | 43.5902, -89.7941 |
| Land Area: | 0.036 sq mi |
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The numbers tell the story of a service hub. The ZIP covers just 0.007 square miles but supports 108 businesses with 1,939 employees. That's one of Wisconsin's highest employment-to-resident ratios. Most of those businesses operate along Wisconsin Dells Parkway, the main commercial strip connecting the village to the larger resort area. The post office provides stable mailing addresses for hotels, attractions, restaurants, and entertainment venues that cater to millions of annual visitors.
Mail delivery here uses rural carrier routes, not city delivery. Two distinct rural routes cover the limited residential areas along E Adams St and the surrounding properties. But the real action happens at the PO Box lobby. Business owners, property managers, and seasonal residents rely on boxes that stay active whether they're in town or not. During peak summer months, box access becomes part of the daily routine for resort operators managing multiple properties.
The village sits within Sauk County, sharing its ZIP boundary with the larger Wisconsin Dells area. The median age of 34.3 reflects a working-age population rather than retirees or students. Most residents are directly connected to the tourism industry, living where they work in a landscape dominated by water parks, attractions, and hospitality operations.
The street roster reflects Lake Delton's dual identity: E Adams St serves the tiny residential core, while Wisconsin Dells Parkway connects to the commercial tourism infrastructure that defines the area's economy.
ZIP Code 53940 has 18 residents and 6 households (average 3.00 persons per household). The median age is 34.3 years, younger than the state (40.1) and younger than the nation (38.8). The gender split is 33.3% male and 66.7% female, which is much lower than the state male share (49.7%), making this a female-majority area. Largest groups are White (88.9%, much higher than the state average of 80.4% and well above the national average of 61.6%) and Hispanic or Latino (11.1%); Hispanic or Latino residents make up 11.1%, which is much lower than the national average (18.7%).
Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship
| 2020 Population: | 18Source: Census DHC |
| 2024 ACS Population Estimate: | 0Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 500.0 people per sq mile |
| Average Income: | $0Source: Census ACS |
| Households: | 6Source: Census DHC |
| Average House Value: | $666,666,666Source: Census ACS |
| Persons Per Household: | 3.00Source: Census DHC |
| Average Family Size: | 2.80Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Decennial Census | 0 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 18 | -- | -- | -- | -- |
Median Age: 34.3
Male Median Age: 27.5
Female Median Age: 34.3
| Group | < 5 | 5-9 | 10-14 | 15-19 | 20-24 | 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 | 55-59 | 60-64 | 65-69 | 70-74 | 75-79 | 80-84 | 85+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Male | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 |
| Female | 0 | 1 | 0 | 0 | 4 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 |
| Total | 0 | 2 | 0 | 2 | 4 | 0 | 3 | 1 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | 0 | 0 | 0 |
| White: | 16 | 84.21% |
| Black: | 0 | 0% |
| Hispanic:* | 2 | 10.53% |
| Asian: | 0 | 0% |
| American Indian: | 0 | 0% |
| Hawaiian: | 0 | 0% |
| Other: | 1 | 5.26% |
| Total: | 19 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 6 | 33.33% | 27.5 years |
| Females: | 12 | 66.67% | 34.3 years |
| Total: | 18 | 100% | 34.3 years |
| Native, born in the United States: | 0 | 0% |
| Native, born in PR, Island Areas, or abroad: | 0 | 0% |
| Foreign born, naturalized U.S. citizen: | 0 | 0% |
| Foreign born, not a U.S. citizen: | 0 | 0% |
| Total Population: | 0 | 100% |
| Total Native Population: | 0 | 0% |
| Total Foreign-born Population: | 0 | 0% |
ZIP Code 53940 supports both business and residential activity. According to the Business Census (2024), there are 83 business establishments, employing about 1,939 people with an annual payroll of $70,106,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 419Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 83Source: CBP |
| 1st Quarter Payroll: | $15,049,000Source: CBP |
| Annual Payroll: | $70,106,000Source: CBP |
| # of Employees: | 1,939Source: CBP |
ZIP Code 53940 is located in Sauk County, Wisconsin, within the Baraboo, WI Metropolitan Statistical Area (CBSA 12660) and Wisconsin's 2nd Congressional District. This Micro area has a population of 61,976 people, about 0.03% of whom live in ZIP Code 53940. It covers 0.036 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Baraboo, WISource: Census |
| CBSA Number: | 12660Source: Census |
| CBSA Type: | MicroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 61,976Source: Census |
| MSA: | Source: Census |
| Land Area: | 0.036 sq miSource: Census |
| Water Area: | --Source: Census |
| Congressional District: | 02Source: USPS |
| Congressional Land Area: | 4536.69 sq miSource: Census |
| PMSA: | Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 5541300Source: Census |
| Place Name: | Lake Delton village; WisconsinSource: Census |
ZIP Code 53940 is in the Wisconsin Dells School District, which serves grades Pre-Kindergarten thru 12th. There are 1 public school(s) in this ZIP Code, and we have located 3 private school(s). It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.