RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4426 locations in the last 30 days (4590 reports) · Last sighting 20 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

56,705 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/9/20262707 W THOMAS STWest Town36Completed10 daysMobile DeviceCity 311
8/4/202510948 S SPRINGFIELD AVEMount Greenwood19Completed10 daysAlderman's OfficeCity 311
9/1/20263520 N KEATING AVEPortage Park30Completed10 daysAlderman's OfficeCity 311
8/12/202512100 S HALSTED STWest Pullman21Completed10 daysPhone CallCity 311
9/15/20251718 W HENDERSON STLake View32Completed10 daysInternetCity 311
9/26/20251900 N HARDING AVEHermosa26Completed10 daysPhone CallCity 311
8/9/20251630 N DAYTON STLincoln Park43Completed10 daysInternetCity 311
8/10/2025142 N HERMITAGE AVENear West Side27Completed10 daysPhone CallCity 311
9/9/20252744 N TROY STLogan Square35Completed10 daysPhone CallCity 311
8/19/20259400 S ADA STWashington Heights21Completed10 daysPhone CallCity 311
8/25/20262069 N BINGHAM STLogan Square1Completed10 daysMobile DeviceCity 311
8/21/20267324 S UNION AVEEnglewood6Completed10 daysPhone CallCity 311
8/4/20263121 W CHASE AVEWest Ridge50Completed10 daysAlderman's OfficeCity 311
8/31/20267538 S HONORE STAuburn Gresham17Completed10 daysPhone CallCity 311
9/8/20265454 N BERNARD STNorth Park39Completed10 daysInternetCity 311
10/9/20269138 S OAKLEY AVEBeverly19Completed10 daysPhone CallCity 311
9/11/2026931 W GUNNISON STUptown46Completed10 daysInternetCity 311
8/4/20263100 W CHASE AVEWest Ridge50Completed10 daysPhone CallCity 311
9/19/20254937 N MENARD AVEJefferson Park45Completed10 daysPhone CallCity 311
8/4/20263100 W CHASE AVEWest Ridge50Completed10 daysPhone CallCity 311
7/10/20265900 S PAULINA STWest Englewood15Completed10 daysPhone CallCity 311
10/5/20265352 S WELLS STFuller Park20Completed10 daysInternetCity 311
8/7/20261840 W CORTLAND STLogan Square32Completed10 daysPhone CallCity 311
8/4/202511413 S WASHTENAW AVEMorgan Park19Completed10 daysAlderman's OfficeCity 311
8/25/202511042 S HARDING AVEMount Greenwood19Completed10 daysInternetCity 311
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