The cycle counter with the highest count for 2021 was Richmond St., Dublin 2 with a total of 889k cyclists for the year, overtaking Grove Road, Dublin 6 which was the busiest counter for 2019 and 2020.
For reference, based on the available data, the most cyclists counted in one location in one year was Grove Road in 2019 with 1.19 million cyclists counted. This is the only time a count of over 1 million was recorded for a single location.
The Richmond St. counter was deployed in January 2021. The two counters that were deployed in Clontarf also made it into the top 10 for the year, despite only having partial data (they were deployed in May 2021).

Notes:
- Analysis is based on Dublin City Council and Dún Laoghaire-Rathdown datasets only. Both are available on the Open Data Portal.
- Only partial data (May onwards) was available for both Clontarf counters.