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 KB	1.2 MB	124.2 KB	1.5 MB	124.2 KB	1.5 MB
AE	763.4 KB	7.4 MB	782.5 KB	9.3 MB	782.5 KB	9.3 MB
AK	2 MB	13.9 MB	2.6 MB	17 MB	2.6 MB	17 MB
AL	22.5 MB	159.7 MB	31.4 MB	196 MB	31.4 MB	196 MB
AP	207.3 KB	1.9 MB	211.8 KB	2.4 MB	211.8 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	128.4 MB	20.4 MB	157.1 MB	20.4 MB	157.1 MB
CA	73.6 MB	641 MB	94.3 MB	775.8 MB	94.3 MB	775.8 MB
CO	15.4 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	458.7 MB	72.8 MB	557 MB	72.8 MB	557 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 MB	48.5 MB	335.9 MB	48.5 MB	335.9 MB
GU	141.7 KB	1.2 MB	183.4 KB	1.4 MB	183.4 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	45.5 MB	7.7 MB	45.5 MB
IL	37.2 MB	304.4 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	130.5 MB	21.7 MB	130.5 MB
LA	15.7 MB	111.8 MB	21.2 MB	135.8 MB	21.2 MB	135.8 MB
MA	19.3 MB	146.2 MB	25 MB	177.1 MB	25 MB	177.1 MB
MD	14.3 MB	105.1 MB	18.4 MB	127 MB	18.4 MB	127 MB
ME	5.9 MB	41.3 MB	8.3 MB	50.9 MB	8.3 MB	50.9 MB
MH	2.4 KB	15.8 KB	2.5 KB	16.5 KB	2.5 KB	16.5 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	151.8 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	13.8 KB	121.4 KB	13.9 KB	126.6 KB	13.9 KB	126.6 KB
MS	12.2 MB	80.1 MB	16.8 MB	98 MB	16.8 MB	98 MB
MT	3.9 MB	29.2 MB	5.3 MB	35.9 MB	5.3 MB	35.9 MB
NC	34.8 MB	246.4 MB	47.2 MB	300.4 MB	47.2 MB	300.4 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	62.5 MB	10.2 MB	62.5 MB
NH	4.4 MB	29.3 MB	5.8 MB	35.7 MB	5.8 MB	35.7 MB
NJ	21.3 MB	160.7 MB	27.4 MB	194.6 MB	27.4 MB	194.6 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 MB	57.7 MB	8 MB	57.7 MB
NY	48.6 MB	446.3 MB	61.6 MB	541.2 MB	61.6 MB	541.2 MB
OH	33 MB	242.4 MB	43.7 MB	293.8 MB	43.7 MB	293.8 MB
OK	15.7 MB	109.6 MB	21.9 MB	134.7 MB	21.9 MB	134.7 MB
OR	13.2 MB	96.5 MB	17.4 MB	117.8 MB	17.4 MB	117.8 MB
PA	33.7 MB	250.7 MB	44.7 MB	305 MB	44.7 MB	305 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	17.4 MB	120.7 MB	23.8 MB	147.2 MB	23.8 MB	147.2 MB
SD	3.8 MB	24.2 MB	5.2 MB	29.6 MB	5.2 MB	29.6 MB
TN	23.1 MB	151.7 MB	30.8 MB	184.3 MB	30.8 MB	184.3 MB
TX	77.4 MB	583.5 MB	104.5 MB	713.3 MB	104.5 MB	713.3 MB
UT	6.6 MB	51.7 MB	9 MB	64 MB	9 MB	64 MB
VA	25.6 MB	179.9 MB	34.4 MB	218.5 MB	34.4 MB	218.5 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	29.5 MB	5.2 MB	29.5 MB
WA	21.1 MB	155.1 MB	27.6 MB	188.8 MB	27.6 MB	188.8 MB
WI	19.8 MB	129.9 MB	26.3 MB	157.7 MB	26.3 MB	157.7 MB
WV	6.9 MB	53.6 MB	10.1 MB	66.8 MB	10.1 MB	66.8 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.