In the 2002 elections to the Swedish parliament (the Riksdag) the 29
national electoral districts (or constituencies) returned a total of
310 representatives (or seats) while a further 39 "equalization" seats
were distributed on a national basis to ensure more proportional
representation of districts in the Riksdag.

So for instance, since the 2002 elections Halland County has been
represented by 11 members in the Riksdag, while Stockholm County has
44 representatives. What I would like to know is how many
representatives those and the other 27 districts had in the Riksdag in
the elections between 1945 and 2002. An ideal answer might listing all
the districts in Sweden between 1945 and 2002 and how many
representatives each had in the Riksdag in 1948 (the first election
year after 1945), 1952,...,2002.

My suspicion is that all this is probably on the web somewhere but
hard to find because it's in Swedish or hidden in a political
scientist's data set.

A couple quick notes: There weren't always 29 electoral districts.
From 1948 to 1991 there were 28 (increasing to 29 in 1994), and some
renaming has occurred since 1994.

Also, the Riksdag was bicameral prior to 1971. To be complete an
answer need only give the distribution of seats in the Second
Chamber (the Andra Kammaren, the directly-elected one between 1945 and
1970) among the 28 districts.

Thanks a lot!

Here is a nice grid telling everything

http://encyclopedia.thefreedictionary.com/Swedish%20parliamentary%20election,%202002

That's a neat site, but as far as I can see all it really gives are
elections results according to party. That's readily available on the
web. What I'm actually after is how many representatives each national
district had in the Riksdag after each election since 1948.

sorry all I can find is 2002 and 1998 

http://encyclopedia.thefreedictionary.com/Elections%20in%20Sweden 

there are provisions for other links there but they are not fleshed out