Posen, IL: Population, ZIP Codes & Nearby Cities

Looking for facts about Posen? It is an incorporated town-sized municipality in Cook County, Illinois, with an estimated 5,865 people according to our dataset. It lies at 41.629°N, 87.686°W in Central time. The sections below cover its size, ZIP codes, neighbors and distances.

What are the key facts about Posen, IL?

What is the population of Posen, IL?

Posen has an estimated population of 5,865. That makes it the 311th largest of the 1,362 places we list in Illinois, and the 96th largest of 122 places in Cook County. The typical place in Illinois has about 1,056 residents, so Posen is roughly 5.6 times the size of a typical neighbor in the state.

Estimates for places of this size carry wider margins of error than those for big cities, so treat the figure as a guide to scale. Our guide to understanding city population numbers explains why sources disagree.

Places in Illinois with a similar population include Staunton (5,913), Breese (5,853), Carterville (5,847), Volo (5,813), Beardstown (5,807). Comparing these pages is a quick way to see how Posen differs from communities of the same scale.

How dense is Posen?

Posen has about 5,017 people per square mile (1,937 per square kilometer), which we classify as an urban core. Within Illinois, it is denser than about 97% of the listed places. Streets at this level typically mix apartment buildings, mixed-use blocks and frequent transit, and many errands can be done on foot. Read how to interpret population density to see how we draw these lines.

What ZIP codes does Posen use?

The postal data lists 2 ZIP codes for Posen: 60406, 60469. Several codes in one place usually reflect separate delivery areas, post offices or large buildings with their own code. Codes beginning with 6 are assigned to the central Midwest (Illinois, Kansas, Missouri and Nebraska). Learn more in our guide to how ZIP codes work or check any code with the ZIP code lookup.

What time zone is Posen in?

Posen is in the Central time zone, which is UTC−6 from Coordinated Universal Time in standard time (IANA zone America/Chicago). The area observes daylight saving time, so clocks move forward in March and back in November. The nearest listed place in a different time zone is St. Joseph, MI, about 70 miles away, which gives a sense of how far the nearest zone boundary may be. Current local time: see the Central time hub. For the rules behind these zones, read US time zones explained.

Where is Posen located in Illinois?

Posen lies in the northeastern part of Illinois, at 41.629° north latitude and 87.686° west longitude. The state capital, Springfield, is about 165 miles to the southwest. The closest listed place in another state is Hammond, IN, roughly 10 miles to the east, which shows how near Posen is to a state line. For big-city services, the nearest place with more than 100,000 people is Chicago, IL, 14 miles to the north.

Which cities are near Posen, IL?

The closest listed place to Posen is Robbins, IL, 1.5 miles to the northwest. Of the eight nearest places below, 8 are in the same county. Distances are straight-line (great-circle) miles measured between place centers; see how distance is calculated.

Which county is Posen in?

Posen is in Cook County, which has the Federal Information Processing Standards (FIPS) code 17031. The county contains 122 places in our data, 100 of which have their own page here and 22 smaller communities that appear only in county and state lists. Other places in the county include Chicago (8,604,203), Cicero (80,796), Arlington Heights (74,760), Evanston (73,473), Schaumburg (72,887). Codes like this one help separate places that share a name; see the guide to counties and FIPS codes.

How far is Posen from major US cities?

Among six major hubs, Posen is closest to Chicago, IL at about 14 miles and farthest from Los Angeles, CA at about 1,744 miles in a straight line. Road distances are usually 10 to 30 percent longer. Try the distance calculator for any other pair.

Are there other places called Posen?

Yes. Our data lists 1 other place named Posen: Posen, MI (218). When you search for Posen, add the state or county so you land on the right one. This page covers the Posen in Cook County, Illinois.

Planning a move to Posen?

If you are weighing Posen, start with the practical numbers: how far it is from where you live, whether it changes your time zone, and how its size and density compare with your current city. Use the distance calculator to measure the trip from where you live. The radius search tool lists every place within any distance of it. Our checklist for comparing cities explains what to check next.

Where to go next

Population and density come from a compiled dataset and are estimates. They may differ from official Census Bureau counts. Verify important figures at census.gov.