U.S. ZIP +4 Database Files

Files available for the ZIP +4 Database

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ZIP+4 Database Files & Sizes

The ZIP+4 database is a large dataset (over 1 GB compressed). Because of this large size, the data is broken down into 62 individual files (one for each state/territory). Each file contains the full data for the given state. Below are the State files available as well as their current Compressed and Uncompressed File Sizes. All files are delivered in compressed .ZIP format.

State	Standard Database		Premium Database		Deluxe Database
State	Compressed	Uncompressed	Compressed	Uncompressed	Compressed	Uncompressed
AA	120.1 KB	1.2 MB	124.3 KB	1.5 MB	124.3 KB	1.5 MB
AE	762.9 KB	7.4 MB	781.9 KB	9.3 MB	781.9 KB	9.3 MB
AK	2 MB	13.9 MB	2.6 MB	17 MB	2.6 MB	17 MB
AL	22.5 MB	159.8 MB	31.4 MB	196.1 MB	31.4 MB	196.1 MB
AP	208.5 KB	1.9 MB	212.4 KB	2.4 MB	212.4 KB	2.4 MB
AR	13.5 MB	89.8 MB	18.6 MB	110.1 MB	18.6 MB	110.1 MB
AS	3 KB	19.5 KB	3.1 KB	20.4 KB	3.1 KB	20.4 KB
AZ	15.2 MB	128.5 MB	20.4 MB	157.3 MB	20.4 MB	157.3 MB
CA	73.6 MB	641.3 MB	94.3 MB	776.1 MB	94.3 MB	776.1 MB
CO	15.5 MB	117.2 MB	20.1 MB	142.6 MB	20.1 MB	142.6 MB
CT	8.8 MB	69.8 MB	11.3 MB	84.4 MB	11.3 MB	84.4 MB
DC	2 MB	18.4 MB	2.4 MB	22.1 MB	2.4 MB	22.1 MB
DE	2.8 MB	20.5 MB	3.9 MB	25.1 MB	3.9 MB	25.1 MB
FL	55.2 MB	458.9 MB	72.9 MB	557.2 MB	72.9 MB	557.2 MB
FM	4.7 KB	36.1 KB	4.7 KB	37.6 KB	4.7 KB	37.6 KB
GA	35.4 MB	275.1 MB	48.5 MB	336 MB	48.5 MB	336 MB
GU	141.9 KB	1.2 MB	183.7 KB	1.4 MB	183.7 KB	1.4 MB
HI	3 MB	25.7 MB	3.8 MB	31.4 MB	3.8 MB	31.4 MB
IA	12.2 MB	85.6 MB	16.2 MB	104.4 MB	16.2 MB	104.4 MB
ID	5.7 MB	37 MB	7.7 MB	45.4 MB	7.7 MB	45.4 MB
IL	37.2 MB	304.5 MB	48.5 MB	369 MB	48.5 MB	369 MB
IN	22.6 MB	168.6 MB	30.8 MB	205.9 MB	30.8 MB	205.9 MB
KS	10.9 MB	72.8 MB	14.6 MB	88.6 MB	14.6 MB	88.6 MB
KY	15.7 MB	106.8 MB	21.7 MB	130.6 MB	21.7 MB	130.6 MB
LA	15.7 MB	111.9 MB	21.2 MB	135.8 MB	21.2 MB	135.8 MB
MA	19.3 MB	146.2 MB	25 MB	177 MB	25 MB	177 MB
MD	14.3 MB	105.2 MB	18.4 MB	127.1 MB	18.4 MB	127.1 MB
ME	6 MB	41.3 MB	8.3 MB	50.9 MB	8.3 MB	50.9 MB
MH	2.5 KB	16.4 KB	2.5 KB	17.1 KB	2.5 KB	17.1 KB
MI	29.6 MB	220.2 MB	39.3 MB	267.8 MB	39.3 MB	267.8 MB
MN	18.7 MB	124.9 MB	24.9 MB	151.7 MB	24.9 MB	151.7 MB
MO	22.2 MB	150.4 MB	30.3 MB	183.6 MB	30.3 MB	183.6 MB
MP	13.9 KB	121.5 KB	14 KB	126.8 KB	14 KB	126.8 KB
MS	12.2 MB	80.1 MB	16.8 MB	98 MB	16.8 MB	98 MB
MT	3.8 MB	29 MB	5.3 MB	35.8 MB	5.3 MB	35.8 MB
NC	34.8 MB	246.5 MB	47.3 MB	300.6 MB	47.3 MB	300.6 MB
ND	3.4 MB	22.1 MB	4.5 MB	27 MB	4.5 MB	27 MB
NE	7.6 MB	51.4 MB	10.2 MB	62.6 MB	10.2 MB	62.6 MB
NH	4.4 MB	29.3 MB	5.8 MB	35.7 MB	5.8 MB	35.7 MB
NJ	21.3 MB	160.8 MB	27.4 MB	194.7 MB	27.4 MB	194.7 MB
NM	6.1 MB	43 MB	8.1 MB	52.5 MB	8.1 MB	52.5 MB
NV	6.2 MB	47.5 MB	8.1 MB	57.7 MB	8.1 MB	57.7 MB
NY	49 MB	446.4 MB	62 MB	541.3 MB	62 MB	541.3 MB
OH	33.3 MB	242.5 MB	44 MB	293.8 MB	44 MB	293.8 MB
OK	15.7 MB	109.7 MB	21.9 MB	134.9 MB	21.9 MB	134.9 MB
OR	13.2 MB	96 MB	17.5 MB	117.1 MB	17.5 MB	117.1 MB
PA	33.8 MB	250.8 MB	44.9 MB	305.1 MB	44.9 MB	305.1 MB
PR	4 MB	31 MB	5.1 MB	37.8 MB	5.1 MB	37.8 MB
PW	3.1 KB	21.9 KB	3.1 KB	22.9 KB	3.1 KB	22.9 KB
RI	3.5 MB	24.6 MB	4.6 MB	29.8 MB	4.6 MB	29.8 MB
SC	17.6 MB	120.7 MB	24 MB	147.3 MB	24 MB	147.3 MB
SD	3.9 MB	24.3 MB	5.2 MB	29.6 MB	5.2 MB	29.6 MB
TN	23.3 MB	151.8 MB	31 MB	184.4 MB	31 MB	184.4 MB
TX	77.6 MB	584.2 MB	104.8 MB	714 MB	104.8 MB	714 MB
UT	6.6 MB	51.8 MB	9 MB	64.1 MB	9 MB	64.1 MB
VA	25.6 MB	180 MB	34.4 MB	218.6 MB	34.4 MB	218.6 MB
VI	139.4 KB	1.1 MB	146.4 KB	1.2 MB	146.4 KB	1.2 MB
VT	3.7 MB	23.9 MB	5.2 MB	29.6 MB	5.2 MB	29.6 MB
WA	21.1 MB	155.2 MB	27.7 MB	188.9 MB	27.7 MB	188.9 MB
WI	19.8 MB	130 MB	26.3 MB	157.8 MB	26.3 MB	157.8 MB
WV	6.9 MB	53.7 MB	10.1 MB	66.8 MB	10.1 MB	66.8 MB
WY	2.3 MB	15.2 MB	3.1 MB	18.6 MB	3.1 MB	18.6 MB

Portions of data provided by and © United States Postal Service 2025. Zip-Codes.com is a non-exclusive licensee of the United States Postal Service.