RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4486 locations in the last 30 days (4653 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.

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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

52,821 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/17/20264501 S SPRINGFIELD AVEArcher Heights14Open—Mobile DeviceCity 311
9/17/20264506 S AVERS AVEArcher Heights14Open—Mobile DeviceCity 311
9/17/20264502 S AVERS AVEArcher Heights14Open—Mobile DeviceCity 311
9/17/20264500 S AVERS AVEArcher Heights14Open—Mobile DeviceCity 311
9/17/20262158 W GIDDINGS STLincoln Square47Open—Alderman's OfficeCity 311
9/17/20267137 S DR MARTIN LUTHER KING JR DRGreater Grand Crossing6Open—Phone CallCity 311
9/17/20264901 W HIRSCH STAustin37Open—Alderman's OfficeCity 311
9/17/20264944 W WINONA STForest Glen45Open—InternetCity 311
9/17/202611431 S WESTERN AVEMorgan Park19Open—Phone CallCity 311
9/17/202610600 S AVENUE BEast Side10Open—Alderman's OfficeCity 311
9/17/20265304 W NEWPORT AVEPortage Park30Open—Phone CallCity 311
9/17/20264742 S SPRINGFIELD AVEArcher Heights14Open—Alderman's OfficeCity 311
9/17/20263520 N RETA AVELake View44Open—Mobile DeviceCity 311
9/17/20261632 W BLACKHAWK STWest Town1Open—InternetCity 311
9/17/20261232 N LA SALLE DRNear North Side2Completed4 daysPhone CallCity 311
9/17/20265515 N NASHVILLE AVENorwood Park41Open—Phone CallCity 311
9/17/20265239 S MOZART STGage Park14Open—Alderman's OfficeCity 311
9/17/20261906 S HAMLIN AVENorth Lawndale24Open—Phone CallCity 311
9/17/20265623 S WOOD STWest Englewood15Open—Phone CallCity 311
9/17/20264925 W GLADYS AVEAustin29Open—Phone CallCity 311
9/17/20261949 N HUMBOLDT BLVDLogan Square26Open—Phone CallCity 311
9/17/20261244 W 72ND STWest Englewood17Open—Phone CallCity 311
9/17/20261866 N MILWAUKEE AVELogan Square32Open—Phone CallCity 311
9/17/20266983 N TONTY AVEForest Glen45Open—Mobile DeviceCity 311
9/17/20264407 N BEACON STUptown46Open—InternetCity 311
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