RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4476 locations in the last 30 days (4641 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
3/26/20267358 N SEELEY AVERogers Park49Completed1 dayInternetCity 311
4/27/20262512 W WALTON STWest Town36Completed1 dayMobile DeviceCity 311
5/14/20261452 W FARGO AVERogers Park49Completed1 dayMobile DeviceCity 311
2/22/20261906 W SUNNYSIDE AVELincoln Square47Completed1 dayInternetCity 311
12/3/20251646 W CERMAK RDLower West Side25Completed1 dayPhone CallCity 311
3/26/20265601 N CENTRAL AVEJefferson Park45Completed1 dayMobile DeviceCity 311
2/19/20264921 N MERRIMAC AVEJefferson Park45Completed1 dayMobile DeviceCity 311
2/17/202610909 S STATE STRoseland9Completed1 dayPhone CallCity 311
12/2/20254823 W GUNNISON STForest Glen45Completed1 dayInternetCity 311
1/27/2026956 N WINCHESTER AVEWest Town36Completed1 dayMobile DeviceCity 311
11/12/20252127 S CENTRAL PARK AVENorth Lawndale24Completed1 dayInternetCity 311
6/22/2026536 W 33RD STBridgeport11Completed1 dayInternetCity 311
12/22/20256200 S SACRAMENTO AVEChicago Lawn15Completed1 dayPhone CallCity 311
5/12/20267046 S EUCLID AVESouth Shore5Completed1 dayInternetCity 311
3/24/20261434 W ARGYLE STUptown47Completed1 dayInternetCity 311
6/10/20262140 W CHARLESTON STLogan Square32Completed1 dayInternetCity 311
3/24/20267714 S WABASH AVEGreater Grand Crossing6Completed1 dayPhone CallCity 311
2/25/20265719 S MELVINA AVEGarfield Ridge13Completed1 dayInternetCity 311
4/9/2026734 W BARRY AVELake View44Completed1 dayInternetCity 311
4/6/20262543 W CORTEZ STWest Town36Completed1 dayMobile DeviceCity 311
4/22/2026914 W BARRY AVELake View44Completed1 dayMobile DeviceCity 311
5/4/20267841 S RIDGELAND AVESouth Shore8Completed1 dayMobile DeviceCity 311
4/23/20264733 N MAPLEWOOD AVELincoln Square40Completed1 dayInternetCity 311
1/8/20261447 E 53RD STHyde Park5Completed1 dayInternetCity 311
4/16/20262232 N LEAMINGTON AVEBelmont Cragin26Completed1 dayMobile DeviceCity 311
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