County · GEOID 30049
Lewis and Clark County, MT ZIP codes
12 ZIP/ZCTAs intersecting this county.
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: County Lewis and Clark County (GEOID 30049). Methodology
Combined population of ZIP/ZCTAs intersecting this county: 75,278 (12 ZIPs).
Combined population of ZIP/ZCTAs intersecting this county. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census county ACS headline above. Methodology
ZIP/ZCTA overlap with Lewis and Clark County
Population overlap
Share of each ZIP/ZCTA’s population located within Lewis and Clark County, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- 5941097.9%
Directory county
- 594218.3%
- 59601100.0%
Directory county
- 59602100.0%
Directory county
- 59623100.0%
Directory county
- 59625100.0%
Directory county
- 59633100.0%
Directory county
- 5963592.5%
Directory county
- 59636100.0%
Directory county
- 59639100.0%
Directory county
- 59640100.0%
Directory county
- 59648100.0%
Directory county
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
ZIP codes intersecting Lewis and Clark County
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 59410 | Augusta | Lewis and Clark County | 617 | $34,125 |
| 59421 | Cascade | Cascade County | 2,039 | $71,688 |
| 59601 | Helena | Lewis and Clark County | 31,822 | $70,502 |
| 59602 | Helena | Lewis and Clark County | 30,379 | $87,841 |
| 59623 | Helena | Lewis and Clark County | 0 | — |
| 59625 | Helena | Lewis and Clark County | 156 | — |
| 59633 | Canyon Creek | Lewis and Clark County | 288 | — |
| 59635 | East Helena | Lewis and Clark County | 8,382 | $73,664 |
| 59636 | Fort Harrison | Lewis and Clark County | 29 | — |
| 59639 | Lincoln | Lewis and Clark County | 993 | $46,284 |
| 59640 | Marysville | Lewis and Clark County | 105 | $95,250 |
| 59648 | Wolf Creek | Lewis and Clark County | 468 | $68,542 |
USPS associates these ZIPs with Lewis and Clark County
These codes list Lewis and Clark County as a primary or acceptable city. They are not used for the ACS headline.
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 59604 | Helena | Lewis and Clark County | 2,415 | — |
| 59620 | Helena | Lewis and Clark County | — | — |
| 59624 | Helena | Lewis and Clark County | 951 | — |
| 59626 | Helena | Lewis and Clark County | — | — |