Lewis and Clark County, MT ZIP Codes
11 ZIP codes cover all or part of Lewis and Clark County, Montana. The Census Bureau counts 73,464 residents in the county, with a median household income of $78,237 and a median home value of $393,500. Median household income ranges from $57,778 in 59639 to $92,985 in 59602. Its largest communities include Helena, Helena Valley Southeast, Helena Valley West Central, Helena Valley Northwest and Helena Valley Northeast.
Lewis and Clark County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 73,464 |
| Households | 31,215 |
| Median household income | $78,237 |
| Median home value | $393,500 |
| Median age | 41.8 |
| Median rent | $1,102 |
All 11 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 73,928 |
| Households (sum of ZIP codes) | 31,298 |
| Median household income, range across ZIP codes | $57,778 (59639) to $92,985 (59602) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $81,190 |
| Homeowners | 70.2% |
| Households with kids under 18 | 24.5% |
| Moved in the past year | 12.7% |
| Carrier routes in EDDM2GO's route library | 23 routes, 13,189 homes (3 of 11 ZIP codes) |
Top facts
- Highest median household income in Lewis and Clark County: 59602 ($92,985)
- Most residents: 59601 (31,728 people)
- Highest homeownership: 59639 (87.0% own their home)
- Most households with kids: 59602 (30.6% of households)
- Most new movers: 59601 (15.9% moved in last year)
- Youngest median age: 59602 (41.0 years)
- Highest median home value: 59602 ($408,600)
Every ZIP code in Lewis and Clark County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 59601 | Helena | 31,728 | 14,984 | $72,290 | $386,500 | 55.8% | 20.8% | 15.9% | — | — | 100% of its land |
| 59602 | Helena | 30,754 | 11,688 | $92,985 | $408,600 | 84.1% | 30.6% | 10.1% | 21 | 13,297 | 100% of its land |
| 59635 | East Helena | 8,292 | 3,381 | $83,740 | $395,600 | 82.8% | 24.1% | 6.7% | — | — | 38% of its land |
| 59639 | Lincoln | 1,021 | 560 | $57,778 | $371,700 | 87.0% | 5.7% | 9.6% | — | — | 100% of its land |
| 59625 | Helena | 663 | 0 | — | — | — | — | 72.5% | — | — | 100% of its land |
| 59410 | Augusta | 520 | 249 | $42,321 | $259,400 | 66.3% | 11.2% | 13.3% | — | — | 98% of its land |
| 59648 | Wolf Creek | 486 | 177 | $65,750 | $263,600 | 89.3% | 31.6% | 2.3% | 1 | 282 | 100% of its land |
| 59633 | Canyon Creek | 272 | 179 | — | $413,600 | 71.5% | 13.4% | 4.4% | — | — | 100% of its land |
| 59640 | Marysville | 160 | 58 | $99,167 | $287,500 | 74.1% | 22.4% | 10.0% | 1 | 59 | 100% of its land |
| 59636 | Fort Harrison | 32 | 22 | — | — | 0.0% | 0.0% | 28.1% | — | — | 100% of its land |
| 59623 | Helena | 0 | 0 | — | — | — | — | — | — | — | 100% of its land |
A ZIP code is listed for Lewis and Clark 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
- Helena — 33,639 residents · 4 ZIP codes
- Helena Valley Southeast — 9,108 residents · 2 ZIP codes
- Helena Valley West Central — 8,056 residents · 1 ZIP code
- Helena Valley Northwest — 5,183 residents · 1 ZIP code
- Helena Valley Northeast — 4,659 residents · 1 ZIP code
- East Helena — 1,702 residents · 1 ZIP code
- Helena West Side — 1,417 residents · 3 ZIP codes
- Lincoln — 908 residents · 1 ZIP code
- Unionville — 412 residents · 1 ZIP code
- York — 182 residents · 1 ZIP code
- Craig — 172 residents · 1 ZIP code
- Augusta — 165 residents · 1 ZIP code
- Marysville — 160 residents · 1 ZIP code
- Rimini — 118 residents · 1 ZIP code
- Milford Colony — 40 residents · 2 ZIP codes
- Canyon Creek — 27 residents · 1 ZIP code
- Gilman — 12 residents · 1 ZIP code
- Wolf Creek — 12 residents · 1 ZIP code
Price a mailing to Lewis and Clark County ZIP codes
EDDM guides
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Frequently asked questions
- What ZIP codes are in Lewis and Clark County, MT?
- 59601, 59602, 59635, 59639, 59625, 59410, 59648, 59633, 59640, 59636 and 59623. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of Lewis and Clark County?
- 73,464 residents in 31,215 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in Lewis and Clark County?
- $78,237 for the county as a whole. Its ZIP codes range from $57,778 (59639) to $92,985 (59602).
- Which Lewis and Clark County ZIP code has the highest median household income?
- 59602, at $92,985, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Lewis and Clark County?
- For the 3 of 11 ZIP codes in EDDM2GO's stored route library: 23 carrier routes reaching 13,189 residential and 449 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.