RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4350 locations in the last 30 days (4532 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

58,146 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
12/12/20255707 S ARCHER AVEGarfield Ridge23Completed3 daysInternetCity 311
10/20/20252151 W WINDSOR AVELincoln Square47Completed3 daysPhone CallCity 311
2/13/20266600 W 64TH PLClearing13Completed3 daysInternetCity 311
1/23/20264600 S MARSHFIELD AVENew City15Completed3 daysPhone CallCity 311
1/23/20264600 S LAFLIN STNew City15Completed3 daysPhone CallCity 311
5/24/20269769 S OGLESBY AVESouth Deering7Completed3 daysInternetCity 311
3/13/20267147 S WOOD STWest Englewood17Completed3 daysPhone CallCity 311
6/15/20261130 N RIDGEWAY AVEHumboldt Park27Completed3 daysPhone CallCity 311
8/9/20264141 N PITTSBURGH AVEDunning38Completed3 daysInternetCity 311
6/23/20264400 W VAN BUREN STWest Garfield Park28Completed3 daysAlderman's OfficeCity 311
2/13/20266700 W 64TH STClearing13Completed3 daysInternetCity 311
11/21/20255111 N MULLIGAN AVEJefferson Park41Completed3 daysPhone CallCity 311
11/28/20252436 W CORTEZ STWest Town36Completed3 daysPhone CallCity 311
3/24/20265148 W ROSCOE STPortage Park31Completed3 daysPhone CallCity 311
6/9/20261422N N MAPLEWOOD AVEWest Town1Completed3 daysInternetCity 311
4/24/20265225 W MONTANA STBelmont Cragin31Completed3 daysInternetCity 311
11/21/2025444 E 43RD STGrand Boulevard3Completed3 daysPhone CallCity 311
3/27/20264312 S EMERALD AVENew City11Completed3 daysPhone CallCity 311
10/20/202611019 S HALE AVEMorgan Park19Completed3 daysInternetCity 311
4/17/20261850 W ESTES AVERogers Park49Completed3 daysInternetCity 311
9/28/202610154 S PRAIRIE AVERoseland9Completed3 daysMobile DeviceCity 311
10/16/20262126 W MOFFAT STLogan Square32Completed3 daysPhone CallCity 311
11/3/20252215 W CERMAK RDLower West Side25Completed3 daysPhone CallCity 311
10/26/20255306 W GRACE STPortage Park30Completed3 daysMobile DeviceCity 311
1/30/20264307 W DRUMMOND PLHermosa31Completed3 daysAlderman's OfficeCity 311
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