Hopkinton is a city in Delaware County, Iowa, home to about 676 people across 0.6 square miles. Its ZIP code is 52237.
Homes sold for a median of $104 per square foot in the three months ending August 2026, a seller’s market.
Each card is that ZIP code’s whole market, including any part outside Hopkinton. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Hopkinton’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Des Moines International Airport (DSM)136 miles away |
|---|---|
| Closer regional airport | Dubuque Regional Airport (DBQ)28 miles away |
| Nearest city of 250,000+ | Madison, WI106 miles away |
| Nearest city of 1 million+ | Chicago, IL186 miles away |
Straight-line distances from the center of Hopkinton; 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.
Hopkinton had 622 residents in the 2020 census, down 9% since 2000.
It’s the 398th largest of 1,019 towns in Iowa by population.
Delaware County grew from 19,185 residents in 1900 to 17,488 in 2020.
Delaware 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 11°F. About 39.6 inches of rain and melted snow fall in a typical year, with about 31 inches of snow.
Source: NOAA 1991–2020 climate normals, Cascade, IA weather station (12 miles away).
5,906 jobs at 522 businesses in Delaware County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
3 doctors and other health care providers list an office in Hopkinton.
Nearest hospitals
Providers with an office here
| Nurse practitioners and physician assistants | 2 |
|---|---|
| Physical and occupational therapists | 1 |
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.
Parks (3 nearby)
Grocery stores
Libraries (1 nearby)
Museums (1 nearby)
Counts are within about 1 mile 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 Maquoketa Valley Comm School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Johnston Elementary SchoolHopkinton | 1–2 | 94 | Public | 0.4 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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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.