Grant County, Indiana ZIP codes
12 ZIP codes are in Grant County, plus 3 that cross in from neighboring counties. It's part of the Marion, IN micro area.
- ZIP codes
- 12
- Population in these ZIPs
- 67,391
- Avg. median income
- $55,900population-weighted
- Cities & towns
- 11
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Grant County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 46919 | Converse | 1,968 | $83,664 | $179,600 |
| 46928 | Fairmount | 4,553 | $67,412 | $173,400 |
| 46930 | Fowlerton | 185 | $52,679 | $91,900 |
| 46933 | Gas City | 6,536 | $56,786 | $159,200 |
| 46938 | Jonesboro | 2,494 | $45,884 | $162,400 |
| 46952 | Marion | 18,189 | $52,880 | $167,000 |
| 46953 | Marion | 23,372 | $46,288 | $109,400 |
| 46957 | Matthews | 443 | $49,444 | $126,800 |
| 46986 | Swayzee | 1,617 | $79,438 | $198,400 |
| 46987 | Sweetser | 1,055 | $80,893 | $188,600 |
| 46989 | Upland | 5,385 | $82,074 | $249,800 |
| 46991 | Van Buren | 1,594 | $47,692 | $154,800 |
ZIP codes partly in Grant County
These ZIP codes are mostly in a neighboring county but cover part of Grant County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 46036 | Elwood | Madison County | 11,683 | $62,074 | $155,000 |
| 46940 | La Fontaine | Wabash County | 2,540 | $64,089 | $209,500 |
| 47348 | Hartford City | Blackford County | 9,080 | $50,426 | $146,500 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Grant County
Nearby counties
Frequently asked questions
How many ZIP codes are in Grant County, Indiana?
12 ZIP codes are mainly in Grant County, and 3 more ZIP codes from neighboring areas reach partly into it.
What cities are in Grant County?
ZIP codes in Grant County use the city names Converse, Fairmount, Fowlerton, Gas City, Jonesboro, Marion, Matthews, Swayzee, Sweetser, Upland and Van Buren.
What metro area is Grant County in?
Grant County is part of the Marion, IN micropolitan statistical area.