RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4391 locations in the last 30 days (4575 reports) · Last sighting 18 hours 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

58,313 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/28/202611144 S SAWYER AVEMount Greenwood19Completed2 daysMobile DeviceCity 311
6/28/20265231 W NEWPORT AVEPortage Park31Completed9 daysInternetCity 311
6/28/202611141 S SPAULDING AVEMount Greenwood19Completed2 daysInternetCity 311
6/28/2026422 W 42ND PLNew City11Completed2 daysInternetCity 311
6/28/2026925 N DAMEN AVEWest Town36Completed4 daysMobile DeviceCity 311
6/28/20268639 S MANISTEE AVESouth Chicago7Completed3 daysInternetCity 311
6/28/20265300 N KEDZIE AVENorth Park39Completed8 daysPhone CallCity 311
6/28/20266957 N WESTERN AVEWest Ridge40Completed3 daysMobile DeviceCity 311
6/28/20263500 W 63RD PLChicago Lawn14Completed2 daysInternetCity 311
6/28/20262531 W FLOURNOY STNear West Side28Completed3 daysPhone CallCity 311
6/28/20265049 W HENDERSON STPortage Park31Completed3 daysMobile DeviceCity 311
6/28/20266550 N FAIRFIELD AVEWest Ridge50Completed4 daysMobile DeviceCity 311
6/28/20263356 N MELVINA AVEDunning30Completed8 daysMobile DeviceCity 311
6/28/20264704 W BELLE PLAINE AVEPortage Park45Completed8 daysPhone CallCity 311
6/28/20265012 N ALBANY AVEAlbany Park33Completed1 dayInternetCity 311
6/28/20264345 S HERMITAGE AVENew City15Completed2 daysInternetCity 311
6/28/20263142 N SOUTHPORT AVELake View32Completed8 daysMobile DeviceCity 311
6/28/20263050 N WOLCOTT AVENorth Center32Completed8 daysInternetCity 311
6/28/20263042 N WOLCOTT AVENorth Center32Completed8 daysInternetCity 311
6/28/20261904 W NELSON STNorth Center32Completed3 daysInternetCity 311
6/28/2026730 N ADA STWest Town27Completed8 daysMobile DeviceCity 311
6/28/20263741 W IRVING PARK RDIrving Park45Completed8 daysInternetCity 311
6/28/20265445 N BERNARD STNorth Park39Completed3 daysInternetCity 311
6/28/20263015 N BROADWAYLake View44Completed8 daysMobile DeviceCity 311
6/28/20263366 S PARNELL AVEBridgeport11Completed2 daysMobile DeviceCity 311
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