Most populous ZIP codes in Idaho
Top 25 most populous ZIP codes in Idaho. #1 is 83646 (Meridian) with about 74,522 residents. Compare population, income, and housing on US5.
These ZIP codes have the largest populations in Idaho. Population totals are aggregated from published ZIP-area Census estimates on US5.
The largest codes are 83646 (Meridian) with about 74,522 residents; 83301 (Twin Falls) with about 61,968 residents; 83686 (Nampa) with about 59,532 residents.
Open any ZIP for a full demographics, income, and housing profile, or return to the Idaho state page for the complete ZIP table.
Ranked ZIP codes
| # | ZIP | City | County | Population | Population | Income | Home value |
|---|---|---|---|---|---|---|---|
| 1 | 83646 | Meridian | Ada County | 74,522 | 74,522 | $101,040 | $488,000 |
| 2 | 83301 | Twin Falls | Twin Falls County | 61,968 | 61,968 | $62,388 | $290,600 |
| 3 | 83686 | Nampa | Canyon County | 59,532 | 59,532 | $83,666 | $381,800 |
| 4 | 83709 | Boise City | Ada County | 58,631 | 58,631 | $88,893 | $440,700 |
| 5 | 83642 | Meridian | Ada County | 58,049 | 58,049 | $96,361 | $492,300 |
| 6 | 83854 | Post Falls | Kootenai County | 53,152 | 53,152 | $72,820 | $433,700 |
| 7 | 83440 | Rexburg | Madison County | 50,669 | 50,669 | $57,701 | $372,800 |
| 8 | 83401 | Idaho Falls | Bonneville County | 47,170 | 47,170 | $75,870 | $307,700 |
| 9 | 83704 | Boise City | Ada County | 41,406 | 41,406 | $70,806 | $354,400 |
| 10 | 83605 | Caldwell | Canyon County | 41,155 | 41,155 | $60,657 | $300,900 |
| 11 | 83687 | Nampa | Canyon County | 40,299 | 40,299 | $72,294 | $369,700 |
| 12 | 83815 | Coeur d'Alene | Kootenai County | 39,993 | 39,993 | $77,139 | $472,300 |
| 13 | 83201 | Pocatello | Bannock County | 39,552 | 39,552 | $63,209 | $256,100 |
| 14 | 83501 | Lewiston | Nez Perce County | 37,478 | 37,478 | $71,909 | $297,300 |
| 15 | 83651 | Nampa | Canyon County | 36,997 | 36,997 | $66,895 | $312,500 |
| 16 | 83706 | Boise City | Ada County | 36,183 | 36,183 | $81,101 | $488,900 |
| 17 | 83634 | Kuna | Ada County | 35,506 | 35,506 | $93,084 | $414,900 |
| 18 | 83616 | Eagle | Ada County | 34,736 | 34,736 | $118,013 | $720,300 |
| 19 | 83607 | Caldwell | Canyon County | 33,804 | 33,804 | $80,170 | $385,100 |
| 20 | 83713 | Boise City | Ada County | 29,992 | 29,992 | $86,419 | $421,600 |
| 21 | 83402 | Idaho Falls | Bonneville County | 29,683 | 29,683 | $72,064 | $301,400 |
| 22 | 83221 | Fort Hall | Bingham County | 29,244 | 29,244 | $77,889 | $250,200 |
| 23 | 83705 | Boise City | Ada County | 27,542 | 27,542 | $62,605 | $378,800 |
| 24 | 83714 | Garden City | Ada County | 26,989 | 26,989 | $86,114 | $468,100 |
| 25 | 83814 | Coeur d'Alene | Kootenai County | 26,640 | 26,640 | $69,914 | $518,800 |
Frequently asked questions
What are the most populous ZIP codes in Idaho?
The largest ZIP on this board is 83646 (Meridian) with about 74,522 residents. See the ranked table for the full top 25.
How does US5 rank ZIP codes in Idaho?
We rank indexable ZIP codes by population from high to low.
Where can I explore all ZIP codes in Idaho?
Visit the Idaho state page for the full ZIP table, demographics summary, and sortable income/housing columns.