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 KB	1.2 MB	124.3 KB	1.5 MB	124.3 KB	1.5 MB
AE	764.1 KB	7.4 MB	783 KB	9.3 MB	783 KB	9.3 MB
AK	2 MB	13.7 MB	2.6 MB	16.8 MB	2.6 MB	16.8 MB
AL	23 MB	158.8 MB	32.2 MB	195.1 MB	32.2 MB	195.1 MB
AP	210 KB	1.9 MB	214.1 KB	2.4 MB	214.1 KB	2.4 MB
AR	13.4 MB	89.5 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	127.4 MB	20.1 MB	156 MB	20.1 MB	156 MB
CA	73 MB	639.7 MB	93.7 MB	774.5 MB	93.7 MB	774.5 MB
CO	15.3 MB	116.5 MB	20 MB	141.9 MB	20 MB	141.9 MB
CT	8.7 MB	69.8 MB	11.3 MB	84.4 MB	11.3 MB	84.4 MB
DC	2 MB	18.2 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	457.1 MB	72.4 MB	555.1 MB	72.4 MB	555.1 MB
FM	4.7 KB	36.1 KB	4.7 KB	37.6 KB	4.7 KB	37.6 KB
GA	35.4 MB	274.2 MB	48.8 MB	336.8 MB	48.8 MB	336.8 MB
GU	141.8 KB	1.2 MB	185.3 KB	1.4 MB	185.3 KB	1.4 MB
HI	3 MB	25.5 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	36.7 MB	7.7 MB	45.1 MB	7.7 MB	45.1 MB
IL	37 MB	303.7 MB	48.3 MB	368.2 MB	48.3 MB	368.2 MB
IN	22.5 MB	168.2 MB	30.7 MB	205.4 MB	30.7 MB	205.4 MB
KS	10.8 MB	72.6 MB	14.5 MB	88.5 MB	14.5 MB	88.5 MB
KY	15.6 MB	106.2 MB	21.6 MB	129.9 MB	21.6 MB	129.9 MB
LA	15.9 MB	111.2 MB	21.4 MB	135.2 MB	21.4 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	50.8 MB	8.3 MB	50.8 MB
MH	2.4 KB	15.8 KB	2.5 KB	16.5 KB	2.5 KB	16.5 KB
MI	29.5 MB	220 MB	39.1 MB	267.7 MB	39.1 MB	267.7 MB
MN	18.6 MB	124.6 MB	24.8 MB	151.5 MB	24.8 MB	151.5 MB
MO	22.2 MB	150.8 MB	30.3 MB	184.2 MB	30.3 MB	184.2 MB
MP	4.1 KB	27.4 KB	4.2 KB	28.6 KB	4.2 KB	28.6 KB
MS	12.1 MB	79.8 MB	16.7 MB	97.7 MB	16.7 MB	97.7 MB
MT	3.8 MB	28.9 MB	5.2 MB	35.6 MB	5.2 MB	35.6 MB
NC	34 MB	244.6 MB	46.6 MB	298.5 MB	46.6 MB	298.5 MB
ND	3.3 MB	22.1 MB	4.5 MB	26.9 MB	4.5 MB	26.9 MB
NE	7.6 MB	51.1 MB	10.1 MB	62.3 MB	10.1 MB	62.3 MB
NH	4.4 MB	29.2 MB	5.8 MB	35.6 MB	5.8 MB	35.6 MB
NJ	21.2 MB	160.5 MB	27.3 MB	194.4 MB	27.3 MB	194.4 MB
NM	6.1 MB	42.6 MB	8.1 MB	52.1 MB	8.1 MB	52.1 MB
NV	6.2 MB	47.2 MB	8 MB	57.4 MB	8 MB	57.4 MB
NY	48.3 MB	444.9 MB	61.3 MB	539.7 MB	61.3 MB	539.7 MB
OH	34.5 MB	246.8 MB	45.5 MB	299.4 MB	45.5 MB	299.4 MB
OK	15.9 MB	108.9 MB	22.2 MB	133.9 MB	22.2 MB	133.9 MB
OR	13.4 MB	96.2 MB	17.8 MB	117.4 MB	17.8 MB	117.4 MB
PA	34.1 MB	250.5 MB	45.2 MB	304.8 MB	45.2 MB	304.8 MB
PR	4 MB	30.9 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	24.5 MB	4.6 MB	29.7 MB	4.6 MB	29.7 MB
SC	17.6 MB	120 MB	24 MB	146.5 MB	24 MB	146.5 MB
SD	3.8 MB	24.1 MB	5.1 MB	29.4 MB	5.1 MB	29.4 MB
TN	22.9 MB	150.9 MB	30.6 MB	183.5 MB	30.6 MB	183.5 MB
TX	78.8 MB	578.6 MB	106.4 MB	707.8 MB	106.4 MB	707.8 MB
UT	6.7 MB	51.2 MB	9.1 MB	63.3 MB	9.1 MB	63.3 MB
VA	26.3 MB	179.2 MB	35.2 MB	217.7 MB	35.2 MB	217.7 MB
VI	139 KB	1.1 MB	145.9 KB	1.2 MB	145.9 KB	1.2 MB
VT	3.7 MB	23.8 MB	5.2 MB	29.4 MB	5.2 MB	29.4 MB
WA	21.4 MB	154 MB	28.1 MB	187.6 MB	28.1 MB	187.6 MB
WI	20.1 MB	129.4 MB	26.7 MB	157.2 MB	26.7 MB	157.2 MB
WV	6.9 MB	53.4 MB	10.2 MB	66.6 MB	10.2 MB	66.6 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.