Bertram is a city in Linn County, Iowa, home to about 239 people across 1.5 square miles. It has no ZIP code of its own: it’s part of 52403.
Homes sold for a median of $128 per square foot in the three months ending August 2026, a seller’s market.
Mostly Cedar Rapids; part is in Bertram
Each card is that ZIP code’s whole market, including any part outside Bertram. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Bertram’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)109 miles away |
|---|---|
| Closer regional airport | The Eastern Iowa Airport (CID)8 miles away |
| Nearest city of 250,000+ | Madison, WI135 miles away |
| Nearest city of 1 million+ | Chicago, IL203 miles away |
Straight-line distances from the center of Bertram; 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.
Bertram had 269 residents in the 2020 census, down 60% since 2000.
It’s the 666th largest of 1,019 towns in Iowa by population.
Linn County grew from 55,392 residents in 1900 to 230,299 in 2020.
Linn County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 86°F in summer, and winter lows average 13°F. About 38.8 inches of rain and melted snow fall in a typical year, with about 34 inches of snow.
Source: NOAA 1991–2020 climate normals, Cedar Rapids #1, IA weather station (5 miles away).
119,172 jobs at 5,744 businesses in Linn County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
657 doctors and other health care providers list an office in Bertram.
Nearest hospitals
Providers with an office here
| Primary care doctors | 60 |
|---|---|
| Specialist doctors | 173 |
| Dentists | 22 |
| Nurse practitioners and physician assistants | 161 |
| Mental health providers | 148 |
| Physical and occupational therapists | 89 |
| Optometrists | 2 |
| Chiropractors | 2 |
| Pharmacies | 11 |
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 (7 nearby)
Grocery stores (1 nearby)
Pharmacies (2 nearby)
Libraries
Museums (1 nearby)
Theaters and performance venues
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 Cedar Rapids Comm School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Grant Wood Elementary SchoolCedar Rapids | Pre-K–5 | 356 | Public | 0.5 mi |
| Erskine Elementary SchoolCedar Rapids | K–5 | 308 | Public | 0.6 mi |
| Johnson STEAM Academy SchoolCedar Rapids | K–5 | 324 | Public | 1.0 mi |
| McKinley STEAM AcademyCedar Rapids | 6–8 | 426 | Public | 1.5 mi |
| George Washington High SchoolCedar Rapids | 9–12 | 1,182 | Public | 0.9 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| All Saints Catholic SchoolCedar Rapids | Pre-K–5 | 114 | Roman Catholic | 0.5 mi |
| Cedar Valley Christian SchoolCedar Rapids | Pre-K–12 | 201 | Christian (no specific denomination) | 0.9 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 Cedar Rapids and Marion.
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.