Brendan Halpin

@bthalpin
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11.9K Posts

Sociologist in Limerick

Mostly playing with unrealistic computer models of real world processes

Emacs, Stata, Shiny & Rstats, Julia, Python

Linux on the desktop since about 1997

tootfinder searchable

Webhttps://teaching.sociology.ul.ie/bhalpin/index.html
Bloghttps://brendanhalpin.net/blog/

I saw this on Reddit, and having the data to hand, I thought I'd replicate it:

https://www.reddit.com/r/europe/comments/1s61cou/how_european_cities_stack_up_in_density/#lightbox

#mastodaoine

A nearby image gives a hint
Where am I?

I've been wondering if "one-off rural housing" can be described as ultra-low density suburbanisation. I've been looking at data: Census Small Area statistics, in fact.

Result, this map:

Rural Census Small Areas with >40% of housing stock build in the period 2000-2022 (bulk in 2000-2008, 2nd phase of Celtic Tiger). Huge patterns of ultra-low density suburbanisation in some areas (Galway city environs) but not others. What's going on east of the M11, SE coast?

#mastodaoine

Enough of my commute is due east-west, and with solar time about 35mins behind UTC, I like to catch equinoctial sunsets when I leave work a bit late #equinox
Even Microsoft get it

Interesting article on fertility in Ireland
https://www.irishtimes.com/your-money/2026/01/29/the-economic-forces-behind-older-motherhood-and-what-makes-ireland-different/

Since I have the data to hand, I attach a graphic showing the rate of first births by age 1980-2024 (see alt text for description).

A bit more clarity re the difference between these measures: the cohort data excludes early (higher age) and later (lower age) data to present complete data from age 15-45.

Total Cohort Fertility Rate and Total Period Fertility Rate for Ireland, using birth data up to end 2024. Consistent downward trend in both, the relative pause in the middle of the TPFR decline is associated with large net in-migration (including of young women) during the Celtic Tiger.

#mastodaoine
#demography
#fertility