RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4485 locations in the last 30 days (4652 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

52,821 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/17/20265304 W NEWPORT AVEPortage Park30Open—Phone CallCity 311
9/17/2026846 N RICHMOND STWest Town26Open—InternetCity 311
9/15/20261726 N HUDSON AVELincoln Park43Open—InternetCity 311
9/15/20262127 N KEDVALE AVEHermosa35Open—Mobile DeviceCity 311
9/15/2026501 W 45TH PLNew City15Open—Phone CallCity 311
9/19/20263057 N CLYBOURN AVENorth Center32Open—InternetCity 311
9/15/20264710 N CAMPBELL AVELincoln Square40Open—InternetCity 311
9/16/20264515 N ARTESIANLincoln Square47Open—Salesforce Mobile AppCity 311
9/17/20261141 W PATTERSON AVELake View44Open—InternetCity 311
9/16/20261619 N TALMAN AVEWest Town26Open—Phone CallCity 311
9/15/2026501 W 44TH PLNew City15Open—Alderman's OfficeCity 311
9/15/20264401 S LOWE AVENew City15Open—Phone CallCity 311
9/16/20265076 W MONROE STAustin28Open—Phone CallCity 311
9/14/20265146 S LINDER AVEGarfield Ridge23Open—Mobile DeviceCity 311
9/16/20263718 S WOOD STMcKinley Park12Open—Alderman's OfficeCity 311
9/16/2026939 N ORLEANS STNear North Side27Open—Phone CallCity 311
9/16/20261845 N HALSTED STLincoln Park43Open—InternetCity 311
9/16/20266210 S CLAREMONT AVEChicago Lawn16Open—Phone CallCity 311
9/17/20261404 W CHICAGO AVEWest Town27Open—InternetCity 311
9/16/20261514 S KILBOURN AVENorth Lawndale24Open—Mobile DeviceCity 311
9/16/20263628 W 85TH PLAshburn18Open—InternetCity 311
9/16/20263204 S EMERALD AVEBridgeport11Open—Mobile DeviceCity 311
9/17/20264506 S AVERS AVEArcher Heights14Open—Mobile DeviceCity 311
9/14/20266328 N ALBANY AVEWest Ridge50Open—InternetCity 311
9/16/20267548 S EMERALD AVEEnglewood17Open—Phone CallCity 311
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