State & county FIPS Codes | Lookup by address, city & ZIP

FIPS Codes are the numbers used to identify geographic regions like countries, states and counties. The use of FIPS Codes facilitate interoperability across government agencies, contractors, and technical communities. The American National Standards Institute (ANSI) manages Federal Information Processing Series (FIPS) Codes.

County FIPS Codes are unique 5-digit codes that represent specific US counties. The first two digits represent the county's state and the last three digits represent the county. For example "49017" is the FIPS Code for Garfield County, Utah. "49" represents Utah and "017" represents Garfield County.

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Need to find the county name or FIPS Code for an address, city, state, or ZIP Code? We have free tools available for FIPS Code lookup via single address lookup, bulk upload, and programmatically via API. Try it out, or watch the video to learn how.

Enter an address to see the county name and FIPS Code	Enter city/state or ZIP Code to see any matching FIPS Codes and county names	Find county FIPS Codes for a large set of addresses using our APIs
FIPS by address	FIPS by city & state	FIPS by API

County FIPS Code lookups are usually more complicated than simply searching by city or ZIP Code. In this article, we will show you why you probably want to do FIPS Code lookups using street addresses if possible. We'll also show you how to look up County FIPS Codes using ZIP Codes or a City/State too.

Table of contents:

• County FIPS Code lookup by address
• Video: How to look up any county FIPS Code
• Lookup county FIPS by ZIP Code or city
• Are FIPS Codes the same as ZIP Codes?
• Complete US state FIPS Codes list
• How to read county FIPS Codes

County FIPS Code lookup by address

You can find FIPS Codes by starting with a ZIP Code, city or address. Using an address is the most reliable way to get precise FIPS Codes. Because ZIP Codes and cities cover large areas, a ZIP Code or city lookup may yield several FIPS Codes. If you want more details, checkout the next section: FIPS Code Lookup by ZIP Code & City.

Ready to learn how to look up a FIPS with an address? Great. Get your address handy.

To get a FIPS Code, visit our Single Address Validation Tool and enter an address for which you need the FIPS Code. Enter the address and click “View Results”. The county and FIPS Code for the address will be displayed in the “Metadata” Section below the map.

Here is the entire process for getting the county name and county FIPS Code for an address:

FIPS code lookup by ZIP Code & city

Using a ZIP Code or city to find a FIPS Code is a lot like the last time I asked a girl for her phone number. When I texted 867-5309, it wasn't Jenny. A guy named Guillermo told me I got pranked.

Entering a city or ZIP to get a FIPS may lead to similar disappointment.

You see, ZIP Codes and cities often cross one or more county lines. A particular ZIP Code or city may yield up to 5 correct FIPS Codes. The same can be said for cities. If you need a specific county FIPS Code, you might be better off using a magic 8-ball than searching by city or ZIP.

Still, there are some use cases where finding FIPS Codes for cities or ZIP Codes may still be beneficial. So let's dive in a bit deeper.

Limitations with FIPS Code lookup by city.

An example of these limitations is found with the city of Leeds, Alabama. Leeds sits right at the intersection of three counties and is served by a single ZIP Code of “35094”.

Suppose that you are an insurance salesperson, and you have a customer that you know lives in Leeds. Unfortunately you don't have their exact address. You need to know their county and FIPS Code in order to show her the health insurance plan you can offer. Even though you know her approximate location, you still can't know her county.

Your customer could reside in Saint Clair County (FIPS Code 01115), Jefferson County (FIPS Code 01073), or Shelby County (FIPS Code 01117). The only way to know for sure is to get the address.

And Leeds is not unique. Well, actually Leeds is unique, because the city is home to the World's Largest Motorcycle Museum! Leeds just isn't unique in the fact that hundreds of cities are split by county lines. In fact, there are cities in the US that are split by up to five counties. This happens in highly populated areas but also suburban and rural areas.

Here are a few examples of cities split by counties:

• New York, New York with a population of 8.4 million is unsurprisingly split by 5 counties.
• Aurora, Illinois is a suburb of Chicago, has a population of 200,000 and is split into 3 counties.
• Allentown, Georgia is split into four counties despite having a population of only 158.

37 states in the US have cities that spread across multiple counties.

There are currently:

• 2 cities split into five counties
• 10 cities split into four counties
• 61 cities split into three counties
• 611 cities split into two counties

In total, there are at least 684 cities across 37 states that cross county lines. If you want to enter one city and expect to get a one FIPS Code returned, you're gonna have a bad time.

Limitations with County FIPS Code lookup by ZIP Code

Like cities and kids named 'Ferris Bueller', ZIP Codes often cross lines. In the Case of ZIP Codes, we are talking about county lines. This results in multiple valid FIPS Codes for a single ZIP. Fortunately, crossing these lines doesn't result in a totaled Ferrari.

People often imagine that ZIP Codes are regions or boxes with defined boundaries. In reality, ZIP Codes are lines. More specifically, ZIP Codes are a collection of postal delivery routes that tie to a post office. ZIP Codes may be based on sparse delivery routes, so the boundary between ZIP Code areas there can be indefinite. They may look like this:

Postal delivery routes are determined by optimal efficiency. County lines are rarely considered when determining where USPS mail trucks go. As a result, as many as 20% of postal codes cross one or more county lines.

If you enter 38583 into our address validation tool, you will find that the ZIP Code spans five counties. ZIP Codes don't only cross county lines. During the 2010 census there were at least 103 ZIP Codes that crossed STATE lines.

FIPS Code lookup by ZIP Code & city tutorial

Now you know the limitations of looking up FIPS Codes by ZIP Code and city. You may still need to know all the counties in a particular city or ZIP Code. Here's how:

1. Visit our Single address validation tool.
2. Under “Lookup Type” select “city/state or ZIP Code”.

3. Enter the desired ZIP Code OR City and State. For this example, we will use Wisconsin Dells, Wisconsin.

4. Click “View Results”

5. Your results will appear. Click the “Show more details ↓” link.

6. In the “Output Fields” section below the map, you will see the default county name “Columbia” and FIPS Code “55021” listed.

7. In the “Alternate Counties” section, you will see “Adams, Juneau, and Sauk”. These are the three additional counties into which Wisconsin Dells divides.

8. In order to see the alternate county FIPS Codes, click “Show Raw Output”.

9. The additional FIPS Code will show under the Alternate Counts section of the code.

Are FIPS Codes the same as ZIP Codes?

ZIP Codes and county FIPS Codes look pretty similar at first glance. They are both five characters long. They are both composed of numbers exclusively. But, that is where the similarities end.

ZIP Codes are collections of mail delivery routes that the USPS uses to organize and expedite mail delivery.

County FIPS Codes on the other hand are a five-digit number used to designate a specific county. A county will always be assigned a single FIPS code but the county may contain dozens of ZIP Codes.

The FIPS Code for Orange County, California is 06059. That is the one and only FIPS Code the county has. Inside of Orange County you will find well over 100 ZIP Codes such as: 92861, 92862, 92863, 92864,92865, etc.

In the US there are currently 3241 counties and 3241 FIPS Code to match. FIPS Codes don't change often. The last time a new County FIPS Code was added to the list was 2001. Conversely, there are 41,000+ ZIP Codes that update regularly based on the needs of the USPS.

There are many reasons for wanting to determine the county of a particular address, including:

• Proper assignment of voting districts.
• Correct calculation of sales tax.
• Demographic profiling using MSA (CBSA) analysis.
• Regulatory compliance, such as medical or insurance-related compliance.

Complete state FIPS Codes list plus territories

Each state in the United States has been assigned a two-digit State FIPS Code. Numbers are assigned alphabetically in ascending order. You may notice in the US States FIPS code that some numbers are skipped. This was done in the 80's to allow for inclusion of new states into the US FIPS Code system while maintaining the alphabetic and number ordering.

For example, you will notice that there is no state currently assigned the FIPS Code of “03”. This is to leave room for American Samoa should they move from being a US protectorate to a US State. There are similar spaces for Guam (14), Puerto Rico (43) and Virgin Islands (52).

Here is a list of the FIPS Codes for all 50 states. US Protectorates, and Washington D.C.

State / Territory / Outlying Area	Alpha Code	US State FIPS Code	Status	Region	Division
Alabama	AL	01	State, Counties	3	6
Alaska	AK	02	State, Boroughs	4	9
Arizona	AZ	04	State, Counties	4	8
Arkansas	AR	05	State, Counties	3	7
California	CA	06	State, Counties	4	9
Colorado	CO	08	State, Counties	4	8
Connecticut	CT	09	State, Counties	1	1
Delaware	DE	10	State, Counties	3	5
District of Columbia	DC	11	Federal district	3	5
Florida	FL	12	State, Counties	3	5
Georgia	GA	13	State, Counties	3	5
Hawaii	HI	15	State, Counties	4	9
Idaho	ID	16	State, Counties	4	8
Illinois	IL	17	State, Counties	2	3
Indiana	IN	18	State, Counties	2	3
Iowa	IA	19	State, Counties	2	4
Kansas	KS	20	State, Counties	2	4
Kentucky	KY	21	State, Counties	3	6
Louisiana	LA	22	State, Parishes	3	7
Maine	ME	23	State, Counties	1	1
Maryland	MD	24	State, Counties	3	5
Massachusetts	MA	25	State, Counties	1	1
Michigan	MI	26	State, Counties	2	3
Minnesota	MN	27	State, Counties	2	4
Mississippi	MS	28	State, Counties	3	6
Missouri	MO	29	State, Counties	2	4
Montana	MT	30	State, Counties	4	8
Nebraska	NE	31	State, Counties	2	4
Nevada	NV	32	State, Counties	4	8
New Hampshire	NH	33	State, Counties	1	1
New Jersey	NJ	34	State, Counties	1	2
New Mexico	NM	35	State, Counties	4	8
New York	NY	36	State, Counties	1	2
North Carolina	NC	37	State, Counties	3	5
North Dakota	ND	38	State, Counties	2	4
Ohio	OH	39	State, Counties	2	3
Oklahoma	OK	40	State, Counties	3	7
Oregon	OR	41	State, Counties	4	9
Pennsylvania	PA	42	State, Counties	1	2
Rhode Island	RI	44	State, Counties	1	1
South Carolina	SC	45	State, Counties	3	5
South Dakota	SD	46	State, Counties	2	4
Tennessee	TN	47	State, Counties	3	6
Texas	TX	48	State, Counties	3	7
Utah	UT	49	State, Counties	4	8
Vermont	VT	50	State, Counties	1	1
Virginia	VA	51	State, Counties	3	5
Washington	WA	53	State, Counties	4	9
West Virginia	WV	54	State, Counties	3	5
Wisconsin	WI	55	State, Counties	2	3
Wyoming	WY	56	State, Counties	4	8
American Samoa	AS	60	Outlying area under U.S. sovereignty
Federated States of Micronesia	FM	64	Freely Associated State
Guam	GU	66	Outlying area under U.S. sovereignty
Johnston Atoll	JA	67	Minor outlying island territory
Marshall Islands	MH	68	Freely Associated State
Northern Mariana Islands	MP	69	Outlying area under U.S. sovereignty
Palau	PW	70	Freely Associated State
Midway Islands	MI	71	Minor outlying island territory
Puerto Rico	PR	72	Outlying area under U.S. sovereignty
U.S. Minor Outlying Islands	UM	74	Minor outlying island territories (aggregated)
Navassa Island	NI	76	Minor outlying island territory
Virgin Islands of the U.S.	VI	78	Outlying area under U.S. sovereignty
Wake Island	WI	79	Minor outlying island territory
Baker Island	BI	81	Minor outlying island territory
Howland Island	HI	84	Minor outlying island territory
Jarvis Island	JI	86	Minor outlying island territory
Kingman Reef	KR	89	Minor outlying island territory
Palmyra Atoll	PA	95	Minor outlying island territory

More information about State FIPS Codes is found at Census.gov

How to read a county FIPS Code

The first two digits in the five-digit county FIPS Code represent the state in which the county is located. For example, the FIPS Code for the state of Utah is “49” so every FIPS Code in the state of Utah will begin with “49”. The next 3 digits of a 5-digit county FIPS Code represents the county. The code Garfield County, Utah is “017”. So, the full five-digit county FIPS code is “49017”

FIPS codes are assigned in alphabetic order to counties counting by odd numbers. The first county in a state alphabetically is always 001, the second county is always 003, the third is 005 and so on.

This method leaves a space between each county for insertion of renamed or newly created counties. All while preserving the alphabetic ordering.

Conclusion

FIPS Codes and county information can be a useful addition to your address data. Smarty can give you all the FIPS Codes you can handle. Start getting FIPS Codes using our Single address verification tool, API, or Bulk address upload. Whatever the FIPS you need, we have you covered.