RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4335 locations in the last 30 days (4494 reports) · Last sighting 2 days 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.

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

52,482 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/21/20268749 S WABASH AVEChatham6Open—Phone CallCity 311
9/21/20261890 N MILWAUKEE AVELogan Square32Open—InternetCity 311
9/21/20263907 W GLADYS AVEWest Garfield Park28Open—Alderman's OfficeCity 311
9/21/20263520 W FRANKLIN BLVDHumboldt Park27Open—Phone CallCity 311
9/21/20262157 W CUYLER AVENorth Center47Open—Alderman's OfficeCity 311
9/21/20261925 S CENTRAL PARK AVENorth Lawndale24Open—Phone CallCity 311
9/21/20262110 N LOREL AVEBelmont Cragin36Open—Alderman's OfficeCity 311
9/21/20262702 S PRINCETON AVEArmour Square11Open—Phone CallCity 311
9/21/20263400 N TRIPP AVEIrving Park30Open—Alderman's OfficeCity 311
9/21/20265918 S FRANCISCO AVEChicago Lawn15Open—InternetCity 311
9/21/20262816 N FRANCISCO AVEAvondale35Open—Phone CallCity 311
9/21/20263161 W MONROE STEast Garfield Park28Open—InternetCity 311
9/21/20265700 W SCHOOL STPortage Park30Open—Phone CallCity 311
9/21/20263276 W FULLERTON AVELogan Square35Open—Alderman's OfficeCity 311
9/21/20261741 W JARVIS AVERogers Park49Open—Alderman's OfficeCity 311
9/21/20263236 W AUGUSTA BLVDHumboldt Park26Open—Mobile DeviceCity 311
9/21/20263037 N LINCOLN AVELake View32Open—Mobile DeviceCity 311
9/21/2026524 W SURF STLake View44Open—Alderman's OfficeCity 311
9/21/20263158 N NEENAH AVEBelmont Cragin36Open—InternetCity 311
9/21/202611642 S CAMPBELL AVEMorgan Park19Open—Phone CallCity 311
9/21/20263741 W 85TH STAshburn18Open—Phone CallCity 311
9/21/20261798 W LAWRENCE AVELincoln Square47Open—InternetCity 311
9/21/20264640 S ST LAWRENCE AVEGrand Boulevard3Open—Phone CallCity 311
9/21/202611317 S SAWYER AVEMount Greenwood19Open—Mobile DeviceCity 311
9/21/2026539 E 46TH PLGrand Boulevard3Open—Phone CallCity 311
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