ZIP codes in Kent County, Michigan

Kent County, Michigan has 46 ZIP codes in this list, from 49301 to 49599. They cover 16 places, among them Grand Rapids, Ada, Rockford and Grandville.

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ZIP code	Place	Land area (sq mi)	Map point
49301	Ada	56.8	42.957, -85.481
49302	Alto	50.0	42.824, -85.426
49306	Belmont	18.4	43.075, -85.563
49315	Byron Center	55.2	42.802, -85.714
49316	Caledonia	57.1	42.819, -85.524
49317	Cannonsburg	no area	43.071, -85.481
49319	Cedar Springs	86.4	43.221, -85.545
49321	Comstock Park	26.3	43.058, -85.684
49330	Kent City	43.7	43.236, -85.740
49331	Lowell	91.5	42.955, -85.365
49341	Rockford	84.5	43.115, -85.514
49343	Sand Lake	55.3	43.298, -85.537
49345	Sparta	52.2	43.162, -85.688
49351	Rockford	no area	43.120, -85.560
49355	Ada	no area	42.954, -85.489
49356	Ada	no area	42.954, -85.489
49357	Ada	no area	42.954, -85.489
49418	Grandville	19.0	42.894, -85.762
49468	Grandville	no area	42.910, -85.763
49501	Grand Rapids	no area	42.984, -85.629
49502	Grand Rapids	no area	42.963, -85.668
49503	Grand Rapids	7.3	42.966, -85.653
49504	Grand Rapids	11.1	42.974, -85.727
49505	Grand Rapids	8.8	43.012, -85.631
49506	Grand Rapids	7.3	42.944, -85.621
49507	Grand Rapids	5.5	42.932, -85.654
49508	Grand Rapids	11.8	42.889, -85.622
49509	Wyoming	7.3	42.913, -85.705
49510	Grand Rapids	no area	43.031, -85.550
49512	Grand Rapids	23.0	42.880, -85.535
49514	Grand Rapids	no area	43.031, -85.550
49515	Grand Rapids	no area	43.031, -85.550
49516	Grand Rapids	no area	43.031, -85.550
49518	Grand Rapids	no area	43.031, -85.550
49519	Wyoming	8.0	42.898, -85.719
49523	Grand Rapids	no area	42.963, -85.668
49525	Grand Rapids	23.4	43.014, -85.603
49528	Grand Rapids	no area	42.881, -85.624
49530	Grand Rapids	no area	43.031, -85.550
49544	Grand Rapids	19.9	43.007, -85.725
49546	Grand Rapids	17.9	42.928, -85.548
49548	Grand Rapids	10.8	42.870, -85.663
49555	Grand Rapids	no area	42.963, -85.668
49560	Grand Rapids	no area	43.031, -85.550
49588	Grand Rapids	no area	43.031, -85.550
49599	Grand Rapids	no area	43.031, -85.550

The ZIP code areas of Kent County add up to about 858 square miles of land (2,223 sq km) as the Census Bureau draws them. The largest is 49331 (Lowell), with 91.5 square miles.

Places with more than one code here: Grand Rapids (25 codes), Ada (4 codes), Rockford (2 codes).

Using these codes

In an address, the ZIP code comes last, after the city and the two-letter state: Ada, MI 49301.
Tap a ZIP code to open it in the look-up, with a copy button for the address line.
A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
"No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.

Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.

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