Gardiner, ME ZIP Codes
2 ZIP codes serve Gardiner, Maine: 04345 and 04359. Together they are home to 12,877 residents in 5,219 households. That is more than the 6,088 people counted inside Gardiner city limits, because these ZIP codes reach past its boundary.
Gardiner city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 6,088 |
| Households | 2,730 |
| Median household income | $71,782 |
| Median home value | $221,600 |
| Median age | 42 |
| Median rent | $1,113 |
All 2 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 12,877 |
| Households (sum of ZIP codes) | 5,219 |
| Median household income, range across ZIP codes | $77,410 (04345) to $77,410 (04345) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $77,410 |
| Homeowners | 76.2% |
| Households with kids under 18 | 27.0% |
| Moved in the past year | 7.5% |
| Carrier routes in EDDM2GO's route library | 12 routes, 5,224 homes (1 of 2 ZIP codes) |
Every ZIP code in Gardiner
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 04345 | Gardiner | 12,579 | 5,083 | $77,410 | $242,800 | 77.6% | 27.7% | 7.7% | 12 | 5,424 | 21% of its land; mailing city |
| 04359 | South Gardiner | 298 | 136 | — | $186,700 | 25.0% | 1.5% | 0.3% | — | — | 100% of its land |
A ZIP code is listed for Gardiner when at least 10% of its land lies inside Gardiner city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Gardiner. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Gardiner.
Counties
- Kennebec County — 27 ZIP codes
Price a mailing to Gardiner ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Gardiner, ME?
- 04345 and 04359. A ZIP code is listed for Gardiner when at least 10% of its land lies inside Gardiner city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Gardiner.
- What is the population of Gardiner, ME?
- The Census Bureau counts 6,088 residents inside Gardiner city limits (ACS 2020–2024). The 2 ZIP codes that serve Gardiner hold 12,877 residents in all.
- What is the median household income in Gardiner, ME?
- $71,782 inside Gardiner city limits, per the Census Bureau. Across its ZIP codes the medians run from $77,410 to $77,410.
- How many carrier routes and mailboxes are in Gardiner, ME?
- For the 1 of 2 ZIP codes in EDDM2GO's stored route library: 12 carrier routes reaching 5,224 residential and 198 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.