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A Gazetteer for the United States and Canada
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Welcome to Peoria ...

The city of Peoria is located in Peoria County<1> and is the County Seat for Peoria County.

The pronunciation of Peoria: pee-OH-ri-uh<2>

Peoria was established in 1680.

When the people of Peoria refer to themselves (known as a demonym), they frequently use Peorian<3>

From the  Census Estimates for 2019, Peoria has a population of 110,507 people<4> (see below for details).

The community of Peoria is 690 feet [210 m] above sea level.<5>.

Time Zone: Peoria lies in the Central Time Zone (CST/CDT) and observes daylight saving time

Area Codes for Peoria: 309 & 861<6>

The ZIP codes for Peoria: 61601-61607, 61610-61616, 61625, 61629-61630, 61633-61639, 61641, 61643, 61650-61656<7>

Population Details ...

Taken from the 2019 Census Estimates, Peoria had an population of 110,507 people. This is a decrease of 3.91% since the 2010 Census (or a decrease of 2.15% since the 2000 Census).

At the time of the 2010 Census, Peoria had a population of 115,007 people (which is 61.76% of the total population of Peoria County). This makes Peoria the county's most populous community.

The population of Peoria represents 0.9% of the total population of Illinois (which has 12,830,632 people), making it the state's 7th most populous community.

With a 2010 count of 115,007 people, the population of Peoria increased 1.83% from the 2000 Census (which had a count of 112,936 people).

More information can be found on the Census Page for Peoria.

Communities Also Named Peoria ...

Using our Gazetteer, we found that there are 20 communities that are also named Peoria - they are located in Alberta, Arizona, Arkansas, Colorado, Florida, Indiana (2), Iowa (2), Kansas, Mississippi, Missouri, Nebraska, New York, North Carolina, Ohio (2), Oklahoma, Oregon and Texas.

For more information, see our Tidbits & Trivia Page for Peoria.

Websites for Peoria ...

Official Website:   www.ci.peoria.il.us/

Junior League:   www.juniorleagueofpeoria.org/

Communities near Peoria ...

We have created a list of 10 communities that are near Peoria.

To Help With Your Genealogy Research ...

We have a couple of sections for those tracing their genealogy.

We created a list of cemeteries that are in the area around Peoria. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Peoria.

Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Peoria. Our list includes information such as whether the 1895 community had a post office or railroad service. See our List of 1890's Communities around Peoria.

We also have a detailed list of newspapers that have been published in the area around Peoria. Our list includes 123 papers. See our Newspapers Page for Peoria.

TripAdvisor Tourism Pages for Peoria ...

Looking for more information about Peoria? A wonderful source is the TripAdvisor website. We always start with the TripAdvisor Tourism page, where you can read an overview with links that will help you find lodging, restaurants and attractions.

In addition to the Tourism page for Peoria, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for Peoria.

Adding Peoria to Our Gazetteer ...

We originally found mention of Peoria in both the FIPS-55 and the GNIS. For more information, see the FIPS and GNIS Codes sections on our Miscellaneous Page.

From our notes, the earliest published mention we've found (so far) for Peoria was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<9>

From that list, the Peoria post office opened in 1823.

For more details, see References and Mentions for Peoria.

Footnotes ...

<1>If you're interested in how the shape of Illinois' counties, including Peoria, have changed over time, we recommend the Atlas of Historical County Boundaries.
<2>The pronunciation we've provided is our attempt to give a phonetic pronunciation for Peoria. While it might not be exactly right, hopefully it will be close. If we have it wrong or there's a better way to pronounce the name, please contact us through our Feedback Page.
<3>A demonym is the name for a resident of a community which is usually derived from (or is related to) the name of that community. In other words, it's how the residents of Peoria refer to themselves. It's important to note that there aren't any rules for taking a city's name and turning it into a demonym. A demonym is informal and while the majority of Peoria may use one name, keep in mind that others may use something different.
<4>Population counts have been provided by the U.S. Census Bureau. For more detail, please visit our Census Page for Peoria.
<5>The elevation is an estimate for the area around Peoria - it will be higher in some places and lower in others.
<6>When there's a risk of an area code running out of phone numbers, an 'Overlay Area Code' is created that has the same geographic boundaries as the existing area code. In this case, the 309 code has been Overlayed with the 861 area code. New phone numbers in the Peoria area will be assigned with one of these codes: 309 or 861. As a result, placing a call in the Peoria area will require 10-digit dialing (where you enter both the area code and then the phone number).
<7>ZIP Codes have been created by the United States Postal Service (USPS) as a way of grouping addresses to make delivery more efficient. The boundaries of the ZIP Code can be changed, re-assigned, eliminated or overlapped with other ZIP Codes. So keep in mind that any given ZIP Code is only 'loosely' associated with a city (such as Peoria). When looking for a ZIP Code, whether Peoria or elsewhere, it's always best to check the website of the United States Postal Service (USPS).

Our list of ZIP Codes for Peoria includes: 61601, 61602, 61603, 61604, 61605, 61606, 61610, 61611, 61612, 61613, 61614, 61615, 61625, 61629, 61633, 61634, 61635, 61636, 61637, 61638, 61641, 61643, 61650, 61651, 61652, 61653, 61654, 61655 & 61656.
<8>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.
<9>A copy of the Blevins & Helbock Post Office list with background information can be found at:

      https://cblevins.github.io/us-post-offices/data-biography/