County ZIP codes · Indiana · FIPS 18135
Randolph County, IN ZIP Codes
Randolph County, Indiana has 13 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 9 of the residential ones lie mainly in Randolph County and 4 mainly in a neighboring county; 10 cross the county line. Median household income ranges from $51,532 in 47373 (Redkey) to $73,654 in 47368 (Parker City) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Randolph 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 $59,913 and $69,764.
They carry 13 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 13 residential ZIP codes in Randolph County
9 ZIP codes lie mainly in Randolph County; 4 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 47394 | Winchester | 7,879 | 65 | $60k | $111k | 100% |
| 47390 | Union City | 4,972 | 64 | $50k | $98k | 93% |
| 47340 | Farmland | 3,051 | 57 | $63k | $175k | 100% |
| 47355 | Lynn | 3,029 | 48 | $73k | $117k | 99% |
| 47368 | Parker City | 2,086 | 59 | $74k | $115k | 77% |
| 47380 | Ridgeville | 1,924 | 31 | $57k | $100k | 89% |
| 47354 | Losantville | 1,182 | 41 | $67k | $121k | 57% |
| 47358 | Modoc | 818 | 22 | $79k | $132k | 94% |
| 47382 | Saratoga | 144 | 1,756 | $49k | $60k | 100% |
Partly in Randolph County
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?
10 ZIP codes of Randolph County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Randolph | Elsewhere |
|---|---|---|
| 47390 | 93% | Jay County 7% |
| 47320 | 5% | Delaware County 94% |
| 47355 | 99% | Wayne County 1% |
| 47373 | 6% | Jay County 94% |
| 47368 | 77% | Delaware County 23% |
| 47380 | 89% | Jay County 11% |
| 47393 | 12% | Wayne County 88% |
| 47360 | 1% | Henry County 94%; Wayne County 4% |
| 47354 | 57% | Henry County 23%; Delaware County 14%; Wayne County 6% |
| 47358 | 94% | Wayne County 6% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Randolph County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Randolph County starts with 473.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 473 | Muncie, IN (SCF 473) | 13 | 63 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.