Putnam County, IN ZIP codes
There are 8 ZIP codes in Putnam County, IN, in 8 towns, from 46105 to 46175. The largest are 46135 (Greencastle), 46120 (Cloverdale) and 46172 (Roachdale). 1 more crosses into it from a neighbouring county: 46121.
The county seat is Greencastle.
- ZIP codes
- 8
- Partly in it
- 1 more
- Towns
- 8
- County seat
- Greencastle
- County FIPS
18133- State
- Indiana
- Population
- 37,280
- Median household income
- $78,378
- Land area
- 481 sq mi
- Metro area
- Greencastle
Putnam County ZIP codes by town
- Greencastle (county seat)
- 46135
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
ZIP codes partly in Putnam County
This ZIP code lies mostly in a neighbouring county but covers a twentieth or more of Putnam County.
- 46121 Coatesville · mostly in Hendricks County
Map of Putnam County ZIP codes
The ZIP codes of Putnam County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Putnam County in numbers
About 37,280 people live in Putnam County, in 14,142 households, the 41st most populous of Indiana's 92 counties. The median household income is $78,378 a year, 9% above the Indiana median of $71,957 (US: $80,734). The median owner-occupied home is valued at $218,900 (about the same as the Indiana median), and median gross rent is $884 a month. The median age is 38.4; 20.2% of adults 25 and over hold a bachelor's degree or higher (29.5% across Indiana); the average commute takes 28 minutes.
| Population | 37,280 |
|---|---|
| Households | 14,142 |
| Median age | 38.4 |
| Median household income | $78,378 |
| Median home value | $218,900 |
| Median gross rent | $884 |
| Bachelor's degree or higher | 20.2% |
| Mean commute | 27.5 min |
| Population density | 78 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Putnam County
| Town | ZIP codes | Population |
|---|---|---|
| Greencastle | 1 | 9,864 |
| Cloverdale | 1 | 2,195 |
| Reelsville | 1 | 2,018 |
| Putnamville | 1 | 1,959 |
| Roachdale | 1 | 971 |
| Fillmore | 1 | 895 |
| Bainbridge | 1 | 605 |
| Russellville | 1 | 308 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Putnam County.
- Hendricks County (12)
- Morgan County (8)
- Montgomery County (11)
- Clay County (10)
- Owen County (7)
- Parke County (9)
Not sure you are in Putnam County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Putnam County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
46105 | Bainbridge , IN | Standard | 1,731 | $87,736 | $248,500 |
46120 | Cloverdale , IN | Standard | 5,947 | $59,970 | $171,400 |
46128 | Fillmore , IN | Standard | 2,490 | $86,466 | $209,300 |
46135 | Greencastle , IN | Standard | 19,632 | $73,677 | $225,600 |
46170 | Putnamville , IN | Standard | 0 | — | — |
46171 | Reelsville , IN | Standard | 2,018 | $83,607 | $287,100 |
46172 | Roachdale , IN | Standard | 2,427 | $85,912 | $177,100 |
46175 | Russellville , IN | Standard | 489 | $74,125 | — |
Cite this page
zipcodes.pro. “Putnam County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/in/county/putnam
Underlying data is public domain or openly licensed — sources, vintages and licences.