First three digits · Iowa
ZIP Codes Starting with
50 ZIP codes start with 522, sorted at the Cedar Rapids, IA (SCF 522) sectional center (USPS labeling list L005, effective October 1, 2026) in Iowa: 47 residential ZIP codes across 14 counties and 3 PO Box or single-organization codes (Census 2020 ZCTAs and GeoNames postal codes, October 2026).
What do the digits 522 mean?
The first digit, 5, is one of ten national areas (Iowa, Minnesota, Montana, North Dakota, South Dakota and Wisconsin). The first three, 522, route mail to a sectional center: USPS labeling list L005 (effective October 1, 2026) sends letters for 522 to the Cedar Rapids, IA (SCF 522) facility. The last two digits pick the delivery area. By residents, the largest town names among the 522 ZIP codes are Iowa City, Coralville, Anamosa, Hiawatha, Kalona and Center Point.
The same facility sorts 4 prefixes, 163 ZIP codes in all: 520, 522, 523, 524.
Where are the 522 ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All ZIP codes starting with 522
| County | ||||||
|---|---|---|---|---|---|---|
| 52201 | Ainsworth | Washington County | 1,148 | 18 | $94k | $182k |
| 52202 | Alburnett | Linn County | 1,269 | 49 | $105k | $246k |
| 52203 | Amana | Iowa County | 2,231 | 42 | $102k | $297k |
| 52204 | Amana | Iowa County | PO Box or unique | – | – | – |
| 52205 | Anamosa | Jones County | 8,627 | 70 | $73k | $222k |
| 52206 | Atkins | Benton County | 2,564 | 90 | $116k | $310k |
| 52207 | Baldwin | Jackson County | 256 | 7 | $59k | $72k |
| 52208 | Belle Plaine | Benton County | 2,877 | 47 | $74k | $121k |
| 52209 | Blairstown | Benton County | 1,158 | 29 | $86k | $223k |
| 52210 | Brandon | Buchanan County | 958 | 28 | $71k | $158k |
| 52211 | Brooklyn | Poweshiek County | 2,795 | 32 | $74k | $200k |
| 52212 | Center Junction | Jones County | 601 | 27 | $111k | $153k |
| 52213 | Center Point | Linn County | 4,114 | 56 | $99k | $260k |
| 52214 | Central City | Linn County | 2,761 | 31 | $87k | $235k |
| 52215 | Chelsea | Tama County | 960 | 12 | $62k | $167k |
| 52216 | Clarence | Cedar County | 1,551 | 27 | $68k | $192k |
| 52217 | Clutier | Tama County | 573 | 10 | $84k | $92k |
| 52218 | Coggon | Linn County | 1,413 | 19 | $82k | $181k |
| 52219 | Prairieburg | Linn County | 143 | 319 | $45k | $98k |
| 52220 | Conroy | Iowa County | 199 | 261 | – | $213k |
| 52221 | Guernsey | Poweshiek County | 332 | 16 | $87k | $228k |
| 52222 | Deep River | Poweshiek County | 631 | 8 | $82k | $121k |
| 52223 | Delhi | Delaware County | 1,199 | 25 | $89k | $204k |
| 52224 | Dysart | Benton County | 2,141 | 22 | $70k | $177k |
| 52225 | Elberon | Tama County | 387 | 10 | $62k | $148k |
| 52227 | Ely | Linn County | 2,996 | 102 | $120k | $342k |
| 52228 | Fairfax | Linn County | 3,802 | 102 | $118k | $309k |
| 52229 | Garrison | Benton County | 678 | 13 | $87k | $151k |
| 52231 | Harper | Keokuk County | 539 | 16 | $91k | $242k |
| 52232 | Hartwick | Poweshiek County | 277 | 13 | $99k | – |
| 52233 | Hiawatha | Linn County | 7,000 | 1,788 | $66k | $204k |
| 52235 | Hills | Johnson County | 974 | 453 | $83k | $240k |
| 52236 | Homestead | Iowa County | 564 | 22 | $88k | $192k |
| 52237 | Hopkinton | Delaware County | 1,830 | 22 | $84k | $167k |
| 52240 | Iowa City | Johnson County | 35,074 | 247 | $53k | $242k |
| 52241 | Coralville | Johnson County | 23,250 | 1,721 | $69k | $299k |
| 52242 | Iowa City | Johnson County | 4,688 | 6,547 | – | – |
| 52243 | Iowa City | Johnson County | PO Box or unique | – | – | – |
| 52244 | Iowa City | Johnson County | PO Box or unique | – | – | – |
| 52245 | Iowa City | Johnson County | 22,853 | 2,722 | $78k | $315k |
| 52246 | Iowa City | Johnson County | 22,308 | 1,335 | $63k | $349k |
| 52247 | Kalona | Johnson County | 5,914 | 73 | $92k | $299k |
| 52248 | Keota | Washington County | 1,675 | 15 | $77k | $157k |
| 52249 | Keystone | Benton County | 1,060 | 21 | $75k | $163k |
| 52251 | Ladora | Iowa County | 544 | 14 | $88k | $120k |
| 52252 | Langworthy | Jones County | 13 | 9 | – | – |
| 52253 | Lisbon | Cedar County | 2,622 | 56 | $105k | $238k |
| 52254 | Lost Nation | Clinton County | 1,004 | 17 | $64k | $114k |
| 52255 | Lowden | Cedar County | 980 | 23 | $71k | $156k |
| 52257 | Luzerne | Benton County | 216 | 13 | $95k | – |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; GeoNames postal codes (CC BY 4.0) for codes without a residential area.