RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4489 locations in the last 30 days (4656 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.

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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

52,821 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/16/20265076 W MONROE STAustin28Open—Phone CallCity 311
9/18/20266964 W IMLAY STNorwood Park41Open—Phone CallCity 311
9/17/20265036 N LOCKWOOD AVEJefferson Park45Open—Mobile DeviceCity 311
9/18/20264336 W PARKER AVEHermosa31Open—Alderman's OfficeCity 311
9/19/20261643 W JULIAN STWest Town1Open—InternetCity 311
9/18/20267920 S HERMITAGE AVEAuburn Gresham17Open—Phone CallCity 311
9/18/20265223 S BISHOP STNew City16Open—Phone CallCity 311
9/16/20262443 N LINDER AVEBelmont Cragin31Open—Mobile DeviceCity 311
9/15/20265147 S LAWLER AVEGarfield Ridge23Open—InternetCity 311
9/17/20262131 N TRIPP AVEHermosa35Open—Alderman's OfficeCity 311
9/15/20261700 W 63RD STWest Englewood15Open—Alderman's OfficeCity 311
9/19/20265227 N MAGNOLIA AVEEdgewater48Open—Mobile DeviceCity 311
9/18/20261334 W WOLFRAM STLake View32Open—InternetCity 311
9/15/20264401 S LOWE AVENew City15Open—Phone CallCity 311
9/17/20265932 N OZANAM AVENorwood Park41Open—InternetCity 311
9/18/20263415 N NORMANDY AVEDunning38Open—Mobile DeviceCity 311
9/18/20264337 W 21ST STNorth Lawndale24Open—Phone CallCity 311
9/17/20261244 W 72ND STWest Englewood17Open—Phone CallCity 311
9/16/20263314 N SOUTHPORT AVELake View44Open—Mobile DeviceCity 311
9/18/20262247 N SPAULDING AVELogan Square35Open—Phone CallCity 311
9/16/20262922 N KENNETH AVEHermosa31Open—Alderman's OfficeCity 311
9/19/20265227 S MERRIMAC AVEGarfield Ridge23Open—InternetCity 311
9/19/20264135 N MARMORA AVEPortage Park38Open—Phone CallCity 311
9/15/2026441 W 45TH STNew City15Open—Phone CallCity 311
9/17/20264502 S AVERS AVEArcher Heights14Open—Mobile DeviceCity 311
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