County ZIP codes · Indiana · FIPS 18107
Montgomery County, IN ZIP Codes
Montgomery County, Indiana has 16 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 11 of the residential ones lie mainly in Montgomery County and 5 mainly in a neighboring county; 13 cross the county line. Median household income ranges from $60,719 in 47930 (Clarks Hill) to $85,912 in 46172 (Roachdale) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Montgomery County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $63,198 and $73,357.
They carry 16 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 16 residential ZIP codes in Montgomery County
11 ZIP codes lie mainly in Montgomery County; 5 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 47933 | Crawfordsville | 28,357 | 120 | $68k | $181k | 98% |
| 47954 | Ladoga | 2,224 | 34 | $81k | $188k | 94% |
| 47940 | Darlington | 1,421 | 34 | $71k | $152k | 100% |
| 47990 | Waynetown | 1,374 | 31 | $63k | $120k | 91% |
| 47968 | New Ross | 1,356 | 52 | $83k | $213k | 88% |
| 47989 | Waveland | 1,274 | 32 | $104k | $123k | 65% |
| 47967 | New Richmond | 873 | 26 | $82k | $144k | 77% |
| 47955 | Linden | 854 | 33 | $72k | $150k | 88% |
| 47994 | Wingate | 674 | 31 | $102k | $174k | 61% |
| 47965 | New Market | 490 | 1,241 | $77k | $148k | 100% |
| 47916 | Alamo | 45 | 726 | – | – | 100% |
Partly in Montgomery County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 46035 | Colfax | 1,348 | 54 | $73k | $165k | 32% |
| 47930 | Clarks Hill | 1,049 | 41 | $61k | $149k | 18% |
| 46172 | Roachdale | 2,427 | 35 | $86k | $177k | 5% |
| 47949 | Hillsboro | 1,555 | 38 | $76k | $119k | 3% |
| 47981 | Romney | 707 | 20 | $86k | $171k | 2% |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
13 ZIP codes of Montgomery County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Montgomery | Elsewhere |
|---|---|---|
| 47933 | 98% | Fountain County 1% |
| 46172 | 5% | Putnam County 95% |
| 47954 | 94% | Putnam County 6% |
| 47949 | 3% | Fountain County 97% |
| 47990 | 91% | Fountain County 9% |
| 47968 | 88% | Boone County 10%; Hendricks County 1% |
| 46035 | 32% | Clinton County 47%; Boone County 22% |
| 47989 | 65% | Parke County 33%; Putnam County 2% |
| 47930 | 18% | Tippecanoe County 81%; Clinton County 1% |
| 47967 | 77% | Tippecanoe County 23% |
| 47955 | 88% | Tippecanoe County 12% |
| 47981 | 2% | Tippecanoe County 98% |
| 47994 | 61% | Fountain County 39% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Montgomery County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Montgomery County's ZIP codes use 3 prefixes: 460, 461 and 479.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 460 | Indianapolis, IN (SCF 460) | 1 | 51 |
| 461 | Indianapolis, IN (SCF 460) | 1 | 63 |
| 479 | Indianapolis, IN (SCF 460) | 14 | 71 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.