Riverdale is a township in Watonwan County, Minnesota, home to about 312 people across 39 square miles. It has no ZIP code of its own: it’s part of 56056, 56062 and 56081.
Homes sold for a median of $124 per square foot across 2 ZIP codes in the three months ending August 2026, and 1 of 2 were seller’s markets.
Mostly La Salle; part is in Riverdale
Mostly Madelia; part is in Riverdale
Mostly St. James; part is in Riverdale
Each card is that ZIP code’s whole market, including any part outside Riverdale. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Riverdale’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)87 miles away |
|---|---|
| Nearest city of 250,000+ | Minneapolis, MN89 miles away |
| Nearest city of 1 million+ | Chicago, IL377 miles away |
Straight-line distances from the center of Riverdale; 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.
Riverdale had 283 residents in the 2020 census, down 16% since 2000.
It’s the 1447th largest of 2,727 towns in Minnesota by population.
Watonwan County grew from 11,496 residents in 1900 to 11,253 in 2020.
Watonwan County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 83°F in summer, and winter lows average 5°F. About 33.1 inches of rain and melted snow fall in a typical year, with about 50 inches of snow.
Source: NOAA 1991–2020 climate normals, St James Wwtp, MN weather station (5 miles away).
3,793 jobs at 280 businesses in Watonwan County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
72 doctors and other health care providers list an office in Riverdale’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 9 |
|---|---|
| Specialist doctors | 2 |
| Dentists | 6 |
| Nurse practitioners and physician assistants | 22 |
| Mental health providers | 8 |
| Physical and occupational therapists | 15 |
| Optometrists | 5 |
| Chiropractors | 5 |
| Pharmacies | 5 |
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.
Grocery stores
Pharmacies
Libraries
Museums
Counts are within about 4 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by St. James Public School District, Madelia Public School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Armstrong SchoolSaint James | Pre-K | 65 | Public | 6.3 mi |
| Madelia ElementaryMadelia | Pre-K–6 | 352 | Public | 5.5 mi |
| St. James Early ChildhoodSaint James | Pre-K | 10 | Special Education | 6.3 mi |
| St. James Northside ElementarySaint James | K–5 | 502 | Public | 5.6 mi |
| St. James Middle/High SchoolSaint James | 6–12 | 566 | Public | 5.8 mi |
| Madelia SecondaryMadelia | 7–12 | 294 | Public | 5.5 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| St Marys Catholic Elementary SchoolMadelia | Pre-K–6 | 74 | Roman Catholic | 5.6 mi |
| St Pauls Lutheran SchoolSaint James | Pre-K–8 | 47 | Wisconsin Evangelical Lutheran Synod | 6.0 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 St. James, Madelia, Madelia Township, Rosendale, Nelson Township, St. James Township, Long Lake Township (Watonwan County), South Branch, Fieldon, Lincoln Township (Blue Earth County), Linden, Ceresco, Albin and La Salle.
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.