Lake Poinsett is a community in Deuel County, South Dakota, home to about 348 people across 4.9 square miles. It has no ZIP code of its own: it’s part of 57212, 57234 and 57248.
Homes sold for a median of $537 per square foot across 3 ZIP codes in the three months ending August 2026, and 1 of 3 were seller’s markets.
Mostly Arlington; part is in Lake Poinsett
Mostly Estelline; part is in Lake Poinsett
Mostly Lake Norden; part is in Lake Poinsett
Each card is that ZIP code’s whole market, including any part outside Lake Poinsett. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Lake Poinsett’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field (MSP)187 miles away |
|---|---|
| Closer regional airport | Watertown Regional Airport (ATY)27 miles away |
| Nearest city of 250,000+ | Minneapolis, MN186 miles away |
| Nearest city of 1 million+ | Chicago, IL505 miles away |
Straight-line distances from the center of Lake Poinsett; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Lake Poinsett had 501 residents in the 2020 census, up 2% since 2010.
It’s the 183rd largest of 440 towns in South Dakota by population.
Deuel County grew from 6,656 residents in 1900 to 4,295 in 2020.
Deuel County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 81°F in summer, and winter lows average 2°F. About 24.9 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Castlewood, SD weather station (13 miles away).
1,038 jobs at 143 businesses in Deuel County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
11 doctors and other health care providers list an office in Lake Poinsett’s ZIP codes.
Nearest hospitals
Providers with an office here
| Nurse practitioners and physician assistants | 5 |
|---|---|
| Physical and occupational therapists | 2 |
| Chiropractors | 4 |
| Pharmacies | 2 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Public schools here are run by Arlington School District 38-1, Estelline School District 28-2, Oldham-Ramona-Rutland School District 39-6. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Arlington Preschool - 04Arlington | Pre-K | 17 | Public | 13.6 mi |
| Estelline Elementary - 02Estelline | Pre-K–5 | 149 | Public | 6.1 mi |
| Arlington Elementary - 02Arlington | K–6 | 152 | Public | 13.6 mi |
| Spring Lake Colony ElementaryArlington | K–8 | 18 | Public | 22.3 mi |
| Estelline Middle School - 03Estelline | 6–8 | 60 | Public | 6.1 mi |
| Arlington Jr. High - 03Arlington | 7–8 | 47 | Public | 13.6 mi |
| Arlington High School - 01Arlington | 9–12 | 76 | Public | 13.6 mi |
| Estelline High School - 01Estelline | 9–12 | 83 | Public | 6.1 mi |
| Spring Lake Colony High SchoolArlington | 9–12 | 12 | Public | 22.3 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Poinsett Colony Elementary SchoolEstelline | K–6 | 9 | Brethren | 9.1 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Arlington, Lake Norden, Estelline, Spring Lake Colony and Hetland.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.