Find the last 4 digits (ZIP+4) for an address in 61856

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ZIP Code 61856 – Monticello, IL

Monticello, Illinois · Piatt County · Central time

ZIP code61856
CityMonticello
StateIllinois
CountyPiatt County
Population8,226
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area107.92 sq mi
Center (lat, long)40.0293, -88.5837

Area codes in this area

217447

These are the area codes that most often serve ZIP 61856 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

61884 White Heath · 6.5 mi61839 De Land · 7.6 mi61830 Cisco · 7.9 mi61813 Bement · 8.2 mi61855 Milmine · 8.3 mi61851 Ivesdale · 9 mi61875 Seymour · 10.2 mi61882 Weldon · 10.5 mi

About ZIP 61856

ZIP code 61856 is assigned to Monticello, Illinois. It lies in Piatt County. Its Census area covers about 107.92 square miles of land. The closest neighboring ZIP is 61884 (White Heath), about 6.5 miles away.

Every address in 61856 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources