Registry / United States / Postal code prefixes / 30 /

United States postal codes starting with 30

Prefix 30 contains 550 ZIP code records across 344 mapped localities in United States.

Verified data profile for United States prefix 30

Based on 550 records, 550 ZIP code values and 344 mapped localities. Coordinate coverage is 100.0%.

550

Records

550

Postal identifiers

100.0%

Geocoded

30002

Example code

Postal code	Locality	Administrative path	Coordinates
30002	Avondale Estates	Georgia / DeKalb	33.7717, -84.2607
30003	Norcross	Georgia / Gwinnett	33.9604, -84.0379
30004	Alpharetta	Georgia / Fulton	34.1124, -84.302
30005	Alpharetta	Georgia / Fulton	34.0782, -84.2281
30006	Marietta	Georgia / Cobb	33.9526, -84.5499
30007	Marietta	Georgia / Cobb	33.9125, -84.5572

Prefix coverage and examples

Use this page to understand country coverage, postal code formats, prefixes and the most useful child pages for lookup or download. The canonical route for this record set is /postal-codes/united-states/codes/30.

How to use this lookup

Use the sample rows to verify what the prefix actually covers.
Compare neighboring prefixes when a city or district spans multiple ranges.
Download the country dataset when you need every code in the prefix.

Records

550

Database rows represented by this canonical route.

Postal identifiers

550

Distinct postal code values in this route.

Localities

344

Mapped place names or administrative entries.

Coordinate coverage

100.0%

Rows with latitude and longitude available.

Detected format

5 digits or ZIP+4

US ZIP Codes use five digits, with an optional ZIP+4 extension.

Example

30002

Sample code from Avondale Estates.

Prefix use

range lookup

Use this range when you know the first digits or letters but need matching localities.

Code	Place	Hierarchy	Coordinates
30002	Avondale Estates	Georgia / DeKalb	33.7717, -84.2607
30003	Norcross	Georgia / Gwinnett	33.9604, -84.0379
30004	Alpharetta	Georgia / Fulton	34.1124, -84.302
30005	Alpharetta	Georgia / Fulton	34.0782, -84.2281
30006	Marietta	Georgia / Cobb	33.9526, -84.5499

Download postal data

CSV, JSON and XLSX exports for research, validation and data products.

Use the API

Query postal codes by country, place name, region or code prefix.

Implementation notes

Field definitions, canonical paths and practical lookup guidance.

Useful related pages

United States

Country · 41,489 records

All prefixes

Postal code prefixes · 41,487 records

Prefix 15

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Prefix 49

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Prefix 12

Postal code range · 567 records

Prefix 72

Postal code range · 552 records

Prefix 75

Postal code range · 550 records

Prefix 98

Postal code range · 550 records

Prefix 78

Postal code range · 548 records

Prefix 77

Postal code range · 539 records

Data questions

What does this ZIP code prefix cover?

This page lists representative records, localities and nearby ranges for the United States prefix 30 prefix in United States.

Is the complete prefix dataset shown here?

The HTML page shows a bounded sample from 550 matching identifiers and points to the country export for complete coverage.

How should I use a prefix page?

Use it to narrow a lookup when you know the first characters of the code, then confirm locality, region and coordinates.

Related prefix ranges in United States

Compare this range with other active ZIP code prefixes from the same country-level directory.

569 codes across 476 localities.

569 codes across 500 localities.

567 codes across 492 localities.

552 codes across 466 localities.

550 codes across 315 localities.

550 codes across 357 localities.

548 codes across 313 localities.

539 codes across 248 localities.

Representative postal code examples

This page keeps a bounded sample for fast crawling and links each code to its canonical lookup page. Use the country export when you need the full prefix dataset.

Postal code	Locality	Region	Coordinates
30002	Avondale Estates	Georgia / DeKalb	33.7717, -84.2607
30003	Norcross	Georgia / Gwinnett	33.9604, -84.0379
30004	Alpharetta	Georgia / Fulton	34.1124, -84.302
30005	Alpharetta	Georgia / Fulton	34.0782, -84.2281
30006	Marietta	Georgia / Cobb	33.9526, -84.5499
30007	Marietta	Georgia / Cobb	33.9125, -84.5572
30008	Marietta	Georgia / Cobb	33.8972, -84.592
30009	Alpharetta	Georgia / Fulton	34.077, -84.3033
30010	Norcross	Georgia / Gwinnett	33.9604, -84.0379
30011	Auburn	Georgia / Barrow	34.0191, -83.8261
30012	Conyers	Georgia / Rockdale	33.7192, -84.0021
30013	Conyers	Georgia / Rockdale	33.6436, -83.9684
30014	Covington	Georgia / Newton	33.5293, -83.8496
30015	Covington	Georgia / Newton	33.5968, -83.8602
30016	Covington	Georgia / Newton	33.5146, -83.8626
30017	Grayson	Georgia / Gwinnett	33.8901, -83.9632
30018	Jersey	Georgia / Walton	33.718, -83.8015
30019	Dacula	Georgia / Gwinnett	33.9883, -83.8795
30021	Clarkston	Georgia / DeKalb	33.8101, -84.2388
30022	Alpharetta	Georgia / Fulton	34.0268, -84.2422
30023	Alpharetta	Georgia / Fulton	34.0754, -84.2941
30024	Suwanee	Georgia / Gwinnett	34.0425, -84.0262
30025	Social Circle	Georgia / Walton	33.6791, -83.6835
30026	North Metro	Georgia / Gwinnett	33.9792, -84.1263
30028	Cumming	Georgia / Forsyth	34.2897, -84.1796
30029	North Metro	Georgia / Gwinnett	33.9792, -84.1263
30030	Decatur	Georgia / DeKalb	33.7699, -84.295
30031	Decatur	Georgia / DeKalb	33.7748, -84.2963
30032	Decatur	Georgia / DeKalb	33.7408, -84.2632
30033	Decatur	Georgia / DeKalb	33.8123, -84.2819
30034	Decatur	Georgia / DeKalb	33.6954, -84.2489
30035	Decatur	Georgia / DeKalb	33.7278, -84.2143
30036	Decatur	Georgia / DeKalb	33.7748, -84.2963
30037	Decatur	Georgia / DeKalb	33.7748, -84.2963
30038	Lithonia	Georgia / DeKalb	33.6823, -84.161
30039	Snellville	Georgia / Gwinnett	33.8178, -84.0229
30040	Cumming	Georgia / Forsyth	34.2321, -84.158
30041	Cumming	Georgia / Forsyth	34.2037, -84.1031
30042	Lawrenceville	Georgia / Gwinnett	33.9295, -84.1032
30043	Lawrenceville	Georgia / Gwinnett	34.0031, -84.0126
30044	Lawrenceville	Georgia / Gwinnett	33.9418, -84.0706
30045	Lawrenceville	Georgia / Gwinnett	33.9367, -83.9573
30046	Lawrenceville	Georgia / Gwinnett	33.9496, -83.9942
30047	Lilburn	Georgia / Gwinnett	33.8656, -84.0725
30048	Lilburn	Georgia / Gwinnett	33.9604, -84.0379
30049	Lawrenceville	Georgia / Gwinnett	33.9495, -83.9922
30052	Loganville	Georgia / Gwinnett	33.8769, -83.8968
30054	Oxford	Georgia / Newton	33.6706, -83.874
30055	Mansfield	Georgia / Jasper	33.4314, -83.7908
30056	Newborn	Georgia / Newton	33.5149, -83.7072
30058	Lithonia	Georgia / DeKalb	33.7356, -84.1009
30060	Marietta	Georgia / Cobb	33.9382, -84.5403
30061	Marietta	Georgia / Cobb	33.9328, -84.556
30062	Marietta	Georgia / Cobb	34.0025, -84.4633
30063	Marietta	Georgia / Cobb	33.9653, -84.5112
30064	Marietta	Georgia / Cobb	33.9343, -84.6076
30065	Marietta	Georgia / Cobb	33.9125, -84.5572
30066	Marietta	Georgia / Cobb	34.0378, -84.5038
30067	Marietta	Georgia / Cobb	33.9282, -84.4733
30068	Marietta	Georgia / Cobb	33.9679, -84.4385

Showing 60 representative records from 550 matching codes to keep the page fast and crawlable. Download the United States dataset for complete coverage.