Sidney, MT ZIP Codes
One ZIP code serves Sidney, Montana: 59270. Together they are home to 8,571 residents in 3,420 households. That is more than the 6,171 people counted inside Sidney city limits, because these ZIP codes reach past its boundary.
Sidney city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 6,171 |
| Households | 2,505 |
| Median household income | $62,538 |
| Median home value | $236,900 |
| Median age | 37.3 |
| Median rent | $931 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 8,571 |
| Households (sum of ZIP codes) | 3,420 |
| Median household income, range across ZIP codes | $72,630 (59270) to $72,630 (59270) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $72,630 |
| Homeowners | 63.8% |
| Households with kids under 18 | 26.6% |
| Moved in the past year | 9.4% |
| Carrier routes in EDDM2GO's route library | 8 routes, 3,613 homes (1 of 1 ZIP codes) |
Every ZIP code in Sidney
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 59270 | Sidney | 8,571 | 3,420 | $72,630 | $267,600 | 63.8% | 26.6% | 9.4% | 8 | 3,985 | 0% of its land; mailing city |
A ZIP code is listed for Sidney when at least 10% of its land lies inside Sidney city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Sidney. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Sidney.
Counties
- Richland County — 9 ZIP codes
Price a mailing to Sidney ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Sidney, MT?
- 59270. A ZIP code is listed for Sidney when at least 10% of its land lies inside Sidney city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Sidney.
- What is the population of Sidney, MT?
- The Census Bureau counts 6,171 residents inside Sidney city limits (ACS 2020–2024). The 1 ZIP code that serve Sidney hold 8,571 residents in all.
- What is the median household income in Sidney, MT?
- $62,538 inside Sidney city limits, per the Census Bureau. Across its ZIP codes the medians run from $72,630 to $72,630.
- How many carrier routes and mailboxes are in Sidney, MT?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 8 carrier routes reaching 3,613 residential and 371 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.