U.S. ZIP +4 Database Files

Files available for the ZIP +4 Database

Actual Customer Emails

I appreciate your great customer service and your fine product.
Best,

Alan Maitland

Online Yellow Pages

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	120.3 KB	1.2 MB	124.8 KB	1.5 MB	124.8 KB	1.5 MB
AE	764.7 KB	7.4 MB	783.6 KB	9.3 MB	783.6 KB	9.3 MB
AK	2 MB	13.8 MB	2.6 MB	16.8 MB	2.6 MB	16.8 MB
AL	23 MB	158.9 MB	32.2 MB	195.2 MB	32.2 MB	195.2 MB
AP	210 KB	1.9 MB	215.2 KB	2.4 MB	215.2 KB	2.4 MB
AR	13.4 MB	89.6 MB	18.5 MB	109.8 MB	18.5 MB	109.8 MB
AS	3 KB	19.6 KB	3.1 KB	20.5 KB	3.1 KB	20.5 KB
AZ	15 MB	127.5 MB	20.1 MB	156.1 MB	20.1 MB	156.1 MB
CA	73.1 MB	639.9 MB	93.8 MB	774.7 MB	93.8 MB	774.7 MB
CO	15.3 MB	116.6 MB	20 MB	142 MB	20 MB	142 MB
CT	8.7 MB	69.8 MB	11.2 MB	84.3 MB	11.2 MB	84.3 MB
DC	2 MB	18.3 MB	2.4 MB	21.9 MB	2.4 MB	21.9 MB
DE	2.8 MB	20.4 MB	3.8 MB	25 MB	3.8 MB	25 MB
FL	54.8 MB	457.3 MB	72.4 MB	555.4 MB	72.4 MB	555.4 MB
FM	4.7 KB	36.1 KB	4.7 KB	37.6 KB	4.7 KB	37.6 KB
GA	35.4 MB	274.3 MB	48.8 MB	336.8 MB	48.8 MB	336.8 MB
GU	141.7 KB	1.2 MB	185.2 KB	1.4 MB	185.2 KB	1.4 MB
HI	3 MB	25.6 MB	3.8 MB	31.2 MB	3.8 MB	31.2 MB
IA	12.1 MB	85.4 MB	16.1 MB	104.1 MB	16.1 MB	104.1 MB
ID	5.7 MB	36.8 MB	7.7 MB	45.2 MB	7.7 MB	45.2 MB
IL	37.9 MB	303.9 MB	49.4 MB	368.4 MB	49.4 MB	368.4 MB
IN	23.3 MB	168.2 MB	31.7 MB	205.4 MB	31.7 MB	205.4 MB
KS	11.2 MB	72.7 MB	14.9 MB	88.5 MB	14.9 MB	88.5 MB
KY	15.9 MB	106.3 MB	21.9 MB	130 MB	21.9 MB	130 MB
LA	16.2 MB	111.3 MB	21.9 MB	135.2 MB	21.9 MB	135.2 MB
MA	19.2 MB	145.5 MB	24.8 MB	176.3 MB	24.8 MB	176.3 MB
MD	14.2 MB	105 MB	18.3 MB	126.8 MB	18.3 MB	126.8 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 MB	39.2 MB	267.7 MB	39.2 MB	267.7 MB
MN	18.9 MB	124.7 MB	25.1 MB	151.5 MB	25.1 MB	151.5 MB
MO	22.7 MB	150.9 MB	31 MB	184.3 MB	31 MB	184.3 MB
MP	4.1 KB	27.4 KB	4.2 KB	28.6 KB	4.2 KB	28.6 KB
MS	12.3 MB	79.9 MB	17 MB	97.8 MB	17 MB	97.8 MB
MT	3.9 MB	28.9 MB	5.4 MB	35.6 MB	5.4 MB	35.6 MB
NC	35.2 MB	244.7 MB	48 MB	298.6 MB	48 MB	298.6 MB
ND	3.4 MB	22.1 MB	4.5 MB	26.9 MB	4.5 MB	26.9 MB
NE	7.7 MB	51.2 MB	10.3 MB	62.3 MB	10.3 MB	62.3 MB
NH	4.5 MB	29.2 MB	5.9 MB	35.6 MB	5.9 MB	35.6 MB
NJ	22.1 MB	160.5 MB	28.3 MB	194.4 MB	28.3 MB	194.4 MB
NM	6.2 MB	42.6 MB	8.2 MB	52.1 MB	8.2 MB	52.1 MB
NV	6.3 MB	47.2 MB	8.2 MB	57.5 MB	8.2 MB	57.5 MB
NY	50.5 MB	445.2 MB	64 MB	540 MB	64 MB	540 MB
OH	34.3 MB	244.1 MB	45.3 MB	296 MB	45.3 MB	296 MB
OK	16 MB	108.9 MB	22.3 MB	134 MB	22.3 MB	134 MB
OR	13.5 MB	96.2 MB	17.8 MB	117.4 MB	17.8 MB	117.4 MB
PA	34.8 MB	250.4 MB	46 MB	304.7 MB	46 MB	304.7 MB
PR	4 MB	30.9 MB	5.1 MB	37.7 MB	5.1 MB	37.7 MB
PW	3.1 KB	21.9 KB	3.1 KB	22.9 KB	3.1 KB	22.9 KB
RI	3.6 MB	24.5 MB	4.6 MB	29.7 MB	4.6 MB	29.7 MB
SC	17.8 MB	120.1 MB	24.3 MB	146.6 MB	24.3 MB	146.6 MB
SD	3.9 MB	24.1 MB	5.2 MB	29.4 MB	5.2 MB	29.4 MB
TN	23.5 MB	150.9 MB	31.2 MB	183.5 MB	31.2 MB	183.5 MB
TX	79.3 MB	579.1 MB	106.8 MB	708.3 MB	106.8 MB	708.3 MB
UT	6.7 MB	51.3 MB	9.1 MB	63.4 MB	9.1 MB	63.4 MB
VA	26.4 MB	179.3 MB	35.3 MB	217.8 MB	35.3 MB	217.8 MB
VI	139.3 KB	1.1 MB	146.2 KB	1.2 MB	146.2 KB	1.2 MB
VT	3.7 MB	23.9 MB	5.2 MB	29.5 MB	5.2 MB	29.5 MB
WA	21.4 MB	154.2 MB	28.1 MB	187.8 MB	28.1 MB	187.8 MB
WI	20.1 MB	129.3 MB	26.7 MB	157.1 MB	26.7 MB	157.1 MB
WV	6.9 MB	53.4 MB	10.2 MB	66.5 MB	10.2 MB	66.5 MB
WY	2.3 MB	15.1 MB	3 MB	18.5 MB	3 MB	18.5 MB

Portions of data provided by and © United States Postal Service 2024. Zip-Codes.com is a non-exclusive licensee of the United States Postal Service.