RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4598 locations in the last 30 days (4767 reports) · Last sighting 12 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.

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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

1,215 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/17/20265242 S ARTESIAN AVEGage Park14Open—Alderman's OfficeCity 311
9/17/20264063 S ARTESIAN AVEBrighton Park12Open—Phone CallCity 311
9/17/20261350 W WINONA STUptown47Open—InternetCity 311
9/17/2026846 N RICHMOND STWest Town26Open—InternetCity 311
9/17/202610233 S BEVERLY AVEWashington Heights21Open—Phone CallCity 311
9/17/20262416 S AVERS AVESouth Lawndale22Open—Alderman's OfficeCity 311
9/17/20263636 W FLOURNOY STEast Garfield Park24Open—Phone CallCity 311
9/17/20265902 W GRACE STPortage Park38Open—InternetCity 311
9/17/20265600 S KARLOV AVEWest Elsdon13Open—Phone CallCity 311
9/17/2026936 N ST LOUIS AVEHumboldt Park27Open—InternetCity 311
9/17/20262131 N TRIPP AVEHermosa35Open—Alderman's OfficeCity 311
9/17/20266501 S KEELER AVEWest Lawn13Open—InternetCity 311
9/17/20263835 N FREMONT STLake View46Open—InternetCity 311
9/17/20262859 W MCLEAN AVELogan Square1Open—Phone CallCity 311
9/17/20261141 W PATTERSON AVELake View44Open—InternetCity 311
9/17/20266014 N WHIPPLE STWest Ridge50Open—Phone CallCity 311
9/17/20266033 S RHODES AVEWoodlawn20Open—InternetCity 311
9/17/20264300 W PALMER STHermosa35Open—Mobile DeviceCity 311
9/17/20265900 W GRACE STPortage Park38Open—InternetCity 311
9/17/20268001 S KEDZIE AVEAshburn18Open—Phone CallCity 311
9/17/20266111 W SEMINOLE STNorwood Park45Open—Mobile DeviceCity 311
9/17/20264072 N SHERIDAN RDUptown46Open—InternetCity 311
9/17/20263149 W DIVERSEYLogan Square35Open—Salesforce Mobile AppCity 311
9/17/20268007 S KEDZIE AVEAshburn18Open—Phone CallCity 311
9/17/20266500 S WINCHESTER AVEWest Englewood16Open—Phone CallCity 311
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