| ZIP Codes: | 13 ZIP Codes (9 Standard, 3 PO Box, 1 Unique) [See All] |
| Area Code: | 319 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:11:50 PM |
| Population: | 130,172 [See All] |
| FIPS: | 19013 |
| CBSA: | Waterloo-Cedar Falls, IA |
| Land Area: | 549 sq mi |
| Water Area: | 6 sq mi |
| Coordinates: | 42.4690, -92.3085 |
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130,172 residents live across 13 ZIPs covering 549 sq mi, served by 9 distinct USPS-recognized cities.
Population moved from 130,752 to 130,019 from 2014 to 2024 — a -0.6% change. 6 ZIPs gained residents, 4 lost.
The county's wealthiest ZIP 50643 (Hudson, $125,804 median) and poorest ZIP 50703 (Waterloo, $50,060) are 14.7 miles apart — a 2.5× income gap across local geography.
Median home values vary 2.8× across this county — from $95,900 in 50703 (Waterloo) to $270,800 in 50613 (Cedar Falls).
Density varies 54× across the county — from 26 people/sq mi in 50651 (La Porte City) to 1,387 in 50634 (Gilbertville).
Educational attainment ranges from 12.9% bachelor's+ in 50707 (Evansdale) to 49.7% in 50613 (Cedar Falls) — the breadth of educational profiles across the area.
Within Iowa, this is the #5 most populous of 99 counties and ranks #32 for median household income .
Hosts 1 single-entity Unique ZIP: 50614University Of Northern Iowa .
Weighted by population, the typical household earns about $68,496 across the county — reflecting what a typical resident sees, not a simple ZIP average.
30.3% of adults age 25+ hold a bachelor's degree or higher (25,056 of 82,617 reporting).
9 Standard delivery, 3 PO Box only, 1 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 50613 | Cedar Falls | Standard | 43,867 | $78,503 | 128.1 | 2.6% |
| 50701 | Waterloo | Standard | 30,232 | $61,475 | 66.3 | 3.0% |
| 50702 | Waterloo | Standard | 20,882 | $62,021 | 21.3 | 2.7% |
| 50703 | Waterloo | Standard | 17,952 | $50,060 | 92.5 | -10.2% |
| 50707 | Evansdale | Standard | 7,784 | $63,441 | 8.4 | -9.3% |
| 50651 | La Porte City | Standard | 3,147 | $88,333 | 122.0 | -14.1% |
| 50643 | Hudson | Standard | 3,027 | $125,804 | 60.3 | 16.2% |
| 50626 | Dunkerton | Standard | 1,468 | $84,306 | 46.2 | -24.7% |
| 50667 | Raymond | Standard | 899 | $76,711 | 1.7 | 3.1% |
| 50634 | Gilbertville | PO Box | 761 | $79,583 | 0.5 | 16.0% |
| 50623 | Dewar | PO Box | 153 | $93,750 | 1.8 | — |
| 50704 | Waterloo | PO Box | — | — | 0.0 | — |
| 50614 | Cedar Falls | Unique | — | — | 0.2 | — |