RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4403 locations in the last 30 days (4558 reports) · Last sighting 21 hours ago

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What am I looking at?

Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.

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Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.

Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.

Why Chicago keeps score on its rats

Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?

What’s actually on the map

Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.

Reading the map

Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.

Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.

Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.

Browse every sighting

1,046 reports match your filters.

Clear filters
DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/26/20265659 W GUNNISON STPortage Park45Open—InternetCity 311
9/26/20265623 W MADISON STAustin29Open—InternetCity 311
9/26/20261927 W SCHOOL STNorth Center32Open—Mobile DeviceCity 311
9/26/20262112 W 21ST PLLower West Side25Open—Phone CallCity 311
9/26/20262531 W PALMER STLogan Square1Open—InternetCity 311
9/26/20261242 N NOBLE STWest Town1Open—InternetCity 311
9/26/20263748 N LAKEWOOD AVELake View44Open—Phone CallCity 311
9/26/20266705 N CAMPBELL AVEWest Ridge50Open—Mobile DeviceCity 311
9/26/20261548 N DEARBORN STNear North Side2Open—InternetCity 311
9/26/2026213 N WALLER AVEAustin29Open—Mobile DeviceCity 311
9/26/20267235 N RIDGE BLVDRogers Park49Open—InternetCity 311
9/26/20263810 W NORTH AVEHumboldt Park26Open—InternetCity 311
9/26/20261914 W DIVISION STWest Town1Open—Mobile DeviceCity 311
9/26/20263500 N CICERO AVEPortage Park31Open—Mobile DeviceCity 311
9/26/20264715 S KOLIN AVEArcher Heights14Open—InternetCity 311
9/26/20265751 W ROSCOE STPortage Park30Open—Mobile DeviceCity 311
9/26/20263743 N MARSHFIELD AVELake View47Open—InternetCity 311
9/26/20267217 S CALIFORNIA AVEChicago Lawn18Open—Mobile DeviceCity 311
9/26/20263841 W 61ST PLWest Lawn23Open—Mobile DeviceCity 311
9/26/20264345 S HERMITAGE AVENew City15Open—InternetCity 311
9/26/202612033 S LA SALLE STWest Pullman9Open—Phone CallCity 311
9/26/20261641 W MARQUETTE RDWest Englewood16Open—Phone CallCity 311
9/26/20261514 W 61ST STWest Englewood16Open—Phone CallCity 311
9/26/20265874 S ARCHER AVEGarfield Ridge23Open—Mobile DeviceCity 311
9/26/20262741 S HARDING AVESouth Lawndale22Open—InternetCity 311
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