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	120.6 KB	1.2 MB	125 KB	1.5 MB	125 KB	1.5 MB
AE	760.9 KB	7.4 MB	781.3 KB	9.3 MB	781.3 KB	9.3 MB
AK	2 MB	14 MB	2.6 MB	17.1 MB	2.6 MB	17.1 MB
AL	22.6 MB	160 MB	31.4 MB	196.4 MB	31.4 MB	196.4 MB
AP	189.5 KB	1.7 MB	193.6 KB	2.2 MB	193.6 KB	2.2 MB
AR	13.5 MB	89.9 MB	18.6 MB	110.2 MB	18.6 MB	110.2 MB
AS	3 KB	19.5 KB	3.1 KB	20.4 KB	3.1 KB	20.4 KB
AZ	15.3 MB	129 MB	20.5 MB	157.8 MB	20.5 MB	157.8 MB
CA	73.8 MB	642 MB	94.6 MB	776.8 MB	94.6 MB	776.8 MB
CO	15.5 MB	117.4 MB	20.1 MB	142.8 MB	20.1 MB	142.8 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	20.6 MB	3.9 MB	25.2 MB	3.9 MB	25.2 MB
FL	55.4 MB	459.1 MB	73 MB	557.2 MB	73 MB	557.2 MB
FM	4.7 KB	36.1 KB	4.7 KB	37.6 KB	4.7 KB	37.6 KB
GA	35.5 MB	275.3 MB	48.7 MB	337.8 MB	48.7 MB	337.8 MB
GU	141.7 KB	1.2 MB	183.9 KB	1.4 MB	183.9 KB	1.4 MB
HI	3 MB	25.8 MB	3.8 MB	31.4 MB	3.8 MB	31.4 MB
IA	12.2 MB	85.6 MB	16.2 MB	104.3 MB	16.2 MB	104.3 MB
ID	5.7 MB	37 MB	7.7 MB	45.5 MB	7.7 MB	45.5 MB
IL	37.3 MB	304.7 MB	48.6 MB	369.2 MB	48.6 MB	369.2 MB
IN	22.6 MB	168.7 MB	30.8 MB	205.9 MB	30.8 MB	205.9 MB
KS	10.9 MB	72.9 MB	14.6 MB	88.7 MB	14.6 MB	88.7 MB
KY	15.8 MB	107.1 MB	21.8 MB	130.8 MB	21.8 MB	130.8 MB
LA	15.7 MB	111.9 MB	21.2 MB	135.9 MB	21.2 MB	135.9 MB
MA	19.4 MB	146.4 MB	25.1 MB	177.2 MB	25.1 MB	177.2 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	29.7 MB	220.3 MB	39.3 MB	267.9 MB	39.3 MB	267.9 MB
MN	18.7 MB	125 MB	24.9 MB	151.8 MB	24.9 MB	151.8 MB
MO	22.2 MB	150.5 MB	30.3 MB	183.7 MB	30.3 MB	183.7 MB
MP	13.9 KB	121.5 KB	14 KB	126.8 KB	14 KB	126.8 KB
MS	12.2 MB	80.2 MB	16.8 MB	98.1 MB	16.8 MB	98.1 MB
MT	3.9 MB	29.1 MB	5.3 MB	35.8 MB	5.3 MB	35.8 MB
NC	34.9 MB	247 MB	47.4 MB	301.1 MB	47.4 MB	301.1 MB
ND	3.4 MB	22.1 MB	4.5 MB	27 MB	4.5 MB	27 MB
NE	7.6 MB	51.5 MB	10.2 MB	62.7 MB	10.2 MB	62.7 MB
NH	4.4 MB	29.4 MB	5.9 MB	35.7 MB	5.9 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	43.1 MB	8.1 MB	52.5 MB	8.1 MB	52.5 MB
NV	6.2 MB	47.5 MB	8.1 MB	57.8 MB	8.1 MB	57.8 MB
NY	48.8 MB	446.9 MB	61.7 MB	541.8 MB	61.7 MB	541.8 MB
OH	33.1 MB	242.6 MB	43.7 MB	294 MB	43.7 MB	294 MB
OK	15.8 MB	110.1 MB	22 MB	135.2 MB	22 MB	135.2 MB
OR	12.8 MB	93.5 MB	16.9 MB	114.1 MB	16.9 MB	114.1 MB
PA	33.8 MB	251.1 MB	44.8 MB	305.4 MB	44.8 MB	305.4 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	3.6 MB	24.7 MB	4.6 MB	29.9 MB	4.6 MB	29.9 MB
SC	17.5 MB	120.9 MB	23.9 MB	147.5 MB	23.9 MB	147.5 MB
SD	3.9 MB	24.3 MB	5.2 MB	29.6 MB	5.2 MB	29.6 MB
TN	23.2 MB	152.3 MB	30.9 MB	184.9 MB	30.9 MB	184.9 MB
TX	77.9 MB	585.4 MB	105 MB	715.2 MB	105 MB	715.2 MB
UT	6.6 MB	52.1 MB	9 MB	64.3 MB	9 MB	64.3 MB
VA	25.8 MB	180.1 MB	34.7 MB	218.7 MB	34.7 MB	218.7 MB
VI	139.5 KB	1.1 MB	146.4 KB	1.2 MB	146.4 KB	1.2 MB
VT	3.7 MB	24 MB	5.2 MB	29.6 MB	5.2 MB	29.6 MB
WA	21.2 MB	155.4 MB	27.7 MB	189.1 MB	27.7 MB	189.1 MB
WI	20 MB	130.7 MB	26.4 MB	158.6 MB	26.4 MB	158.6 MB
WV	6.9 MB	53.4 MB	10.1 MB	66.4 MB	10.1 MB	66.4 MB
WY	2.3 MB	15.2 MB	3 MB	18.6 MB	3 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.