RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4477 locations in the last 30 days (4642 reports) · Last sighting yesterday

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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.

32080fewer → more

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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/15/20262937 N LINDER AVEBelmont Cragin31Open—Alderman's OfficeCity 311
9/22/20261637 N FRANCISCO AVEWest Town26Open—Phone CallCity 311
9/23/20263024 W CHASE AVEWest Ridge50Open—InternetCity 311
9/24/20263307 W 59TH PLChicago Lawn14Open—Alderman's OfficeCity 311
9/15/20265800 S HONORE STWest Englewood15Open—Phone CallCity 311
9/16/20263901 W ADDISON STAvondale30Open—Phone CallCity 311
9/15/20265057 N MOBILE AVEJefferson Park45Open—Phone CallCity 311
9/15/20264438 S HONORE STNew City15Open—Alderman's OfficeCity 311
9/15/20266058 W WELLINGTON AVEBelmont Cragin30Open—Mobile DeviceCity 311
9/15/20261900 W 63RD STWest Englewood16Open—Phone CallCity 311
9/14/20265100 W ADDISON STPortage Park30Open—Alderman's OfficeCity 311
9/14/20265758 W EDDY STPortage Park30Open—Phone CallCity 311
9/13/20262057 N OAKLEY AVELogan Square32Open—InternetCity 311
9/15/20264824 S LAVERGNE AVEGarfield Ridge22Open—Phone CallCity 311
9/13/20262142 W CERMAK RDLower West Side25Open—Phone CallCity 311
9/21/20263400 N TRIPP AVEIrving Park30Open—Alderman's OfficeCity 311
9/15/20263837 N MARSHFIELD AVELake View47Open—InternetCity 311
9/18/20263054 N RACINE AVELake View32Open—Phone CallCity 311
9/17/20261642 W COLUMBIA AVERogers Park49Open—Phone CallCity 311
9/16/2026115 S PULASKI RDWest Garfield Park28Open—Mobile DeviceCity 311
9/15/20263262 W WABANSIA AVEHumboldt Park26Open—Mobile DeviceCity 311
9/15/2026501 W 44TH PLNew City15Open—Alderman's OfficeCity 311
9/15/2026860 W ALDINE AVELake View44Open—InternetCity 311
9/21/20261905 N KOSTNER AVEHermosa26Open—InternetCity 311
9/21/20264831 N KEDVALE AVEAlbany Park39Open—Phone CallCity 311
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