Cerro Gordo County, IA ZIP Codes
14 ZIP codes cover all or part of Cerro Gordo County, Iowa. The Census Bureau counts 42,632 residents in the county, with a median household income of $68,189 and a median home value of $166,400. Median household income ranges from $66,072 in 50401 to $99,643 in 50458. Its largest communities include Mason City, Clear Lake, Rockwell, Ventura and Thornton.
Cerro Gordo County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 42,632 |
| Households | 19,538 |
| Median household income | $68,189 |
| Median home value | $166,400 |
| Median age | 44 |
| Median rent | $850 |
All 14 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 47,884 |
| Households (sum of ZIP codes) | 21,681 |
| Median household income, range across ZIP codes | $66,072 (50401) to $99,643 (50458) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $71,040 |
| Homeowners | 71.5% |
| Households with kids under 18 | 24.3% |
| Moved in the past year | 11.2% |
| Carrier routes in EDDM2GO's route library | 19 routes, 6,899 homes (6 of 14 ZIP codes) |
Top facts
- Highest median household income in Cerro Gordo County: 50458 ($99,643)
- Most residents: 50401 (28,703 people)
- Highest homeownership: 50458 (85.5% own their home)
- Most households with kids: 50458 (34.0% of households)
- Most new movers: 50401 (12.9% moved in last year)
- Youngest median age: 50468 (40.5 years)
- Highest median home value: 50428 ($283,400)
Every ZIP code in Cerro Gordo County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 50401 | Mason City | 28,703 | 13,321 | $66,072 | $146,500 | 66.3% | 25.0% | 12.9% | — | — | 100% of its land |
| 50428 | Clear Lake | 9,071 | 4,186 | $81,037 | $283,400 | 76.6% | 18.8% | 9.8% | 9 | 5,456 | 100% of its land |
| 50458 | Nora Springs | 2,094 | 794 | $99,643 | $157,500 | 85.5% | 34.0% | 10.4% | 3 | 596 | 36% of its land |
| 50468 | Rockford | 1,617 | 653 | $73,403 | $173,700 | 81.3% | 31.2% | 6.5% | 3 | 607 | 25% of its land |
| 50469 | Rockwell | 1,527 | 635 | $71,250 | $211,700 | 80.8% | 23.1% | 3.4% | — | — | 100% of its land |
| 50475 | Sheffield | 1,446 | 596 | $70,938 | $165,300 | 79.0% | 27.5% | 12.6% | — | — | 23% of its land |
| 50482 | Ventura | 748 | 320 | $98,289 | $238,000 | 80.6% | 16.3% | 5.5% | 1 | 271 | 78% of its land |
| 50464 | Plymouth | 694 | 277 | $91,750 | $197,100 | 84.5% | 33.6% | 18.6% | 2 | 150 | 55% of its land |
| 50479 | Thornton | 655 | 288 | $68,750 | $121,100 | 87.2% | 27.1% | 6.3% | — | — | 72% of its land |
| 50457 | Meservey | 463 | 171 | $47,250 | $90,800 | 77.8% | 43.3% | 1.9% | — | — | 30% of its land |
| 50434 | Fertile | 396 | 248 | — | — | 93.1% | 9.3% | 0.5% | 1 | 134 | 40% of its land |
| 50477 | Swaledale | 250 | 112 | $52,321 | $83,000 | 74.1% | 13.4% | 0.8% | — | — | 100% of its land |
| 50433 | Dougherty | 157 | 56 | $69,167 | $86,300 | 100.0% | 35.7% | 0.0% | — | — | 53% of its land |
| 50467 | Rock Falls | 63 | 24 | $63,750 | $150,000 | 91.7% | 37.5% | 6.3% | — | — | 100% of its land |
A ZIP code is listed for Cerro Gordo County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.
Cities and communities
- Mason City — 27,050 residents · 1 ZIP code
- Clear Lake — 7,607 residents · 1 ZIP code
- Rockwell — 986 residents · 1 ZIP code
- Ventura — 733 residents · 2 ZIP codes
- Thornton — 514 residents · 1 ZIP code
- Plymouth — 407 residents · 1 ZIP code
- Swaledale — 148 residents · 1 ZIP code
- Rock Falls — 119 residents · 2 ZIP codes
- Dougherty — 88 residents · 1 ZIP code
- Portland — 29 residents · 1 ZIP code
- Burchinal — 6 residents · 1 ZIP code
Rankings
- Richest ZIP codes in Cerro Gordo County — 6 ZIP codes ranked
- ZIP codes with the highest home values in Cerro Gordo County — 6 ZIP codes ranked
- ZIP codes with the highest homeownership in Cerro Gordo County — 6 ZIP codes ranked
- ZIP codes with the most families with kids in Cerro Gordo County — 6 ZIP codes ranked
- ZIP codes with the most new movers in Cerro Gordo County — 6 ZIP codes ranked
- Youngest ZIP codes in Cerro Gordo County — 6 ZIP codes ranked
- Oldest ZIP codes in Cerro Gordo County — 6 ZIP codes ranked
- Fastest-growing ZIP codes in Cerro Gordo County — 6 ZIP codes ranked
Price a mailing to Cerro Gordo County ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Cerro Gordo County, IA?
- 50401, 50428, 50458, 50468, 50469, 50475, 50482, 50464, 50479, 50457, 50434, 50477, 50433 and 50467. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of Cerro Gordo County?
- 42,632 residents in 19,538 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in Cerro Gordo County?
- $68,189 for the county as a whole. Its ZIP codes range from $66,072 (50401) to $99,643 (50458).
- Which Cerro Gordo County ZIP code has the highest median household income?
- 50458, at $99,643, among ZIP codes with at least 1,000 residents. See the full ranking of Cerro Gordo County ZIP codes by income.
- How many carrier routes and mailboxes are in Cerro Gordo County?
- For the 6 of 14 ZIP codes in EDDM2GO's stored route library: 19 carrier routes reaching 6,899 residential and 317 business mailboxes. The route map loads the rest when you search them.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.