This is a multipart question.

1) Which states do not have state-wide building codes? (of all 50, not
just lower 48)

2) For each state from question 1, I'd like a county-by-county listing
of the state, including whether the county has or has not adopted its
own building codes.

For the price you are offering, you might get the answer to your
first question alone.

You may want to review the pricing guidelines for Google Answers.

http://answers.google.com/answers/pricing.html

The first question I posted on this service wasn't answered completely
to my satisfaction.  I offered $30 for an algorithm, and I recieved
only advice on how to implement the algorithm myself, but was
nevertheless charged the $30. I chalked that up to a learning
experience about how exactly the google answers service works.

After looking around this site, I've found that some users get better
answers by offering a small bounty for the question, and then tipping
according to the value of the answer you get.

tsurugi-ga

Hi Tsurugi,

I'm sorry your first Answer was not up to your expectations.  There
are a number of things which could have remedied the situation, which
I hope you'll keep in mind for the future:

-- If at first blush, you're not happy with your Answer, ask the
Researcher for clarification.  Tell him or her what other detail(s)
you need.  Sometimes an unsatisfactory Answer comes from a
misunderstanding.  Most of us are more than happy to work with our
customers until they get what they want.  I know I will certainly keep
at it until I feel I have reached the end of my resources.

-- If you're getting nowhere with Clarifications or if you and your
Researcher remain at an impasse for some reason, you have 30 days to
ask for a refund (less the non-refundable posting fee of 50 cents):

Google Answers Refund or Repost Request
http://answers.google.com/answers/refundrequest

Please don't take my saying so amiss, but I wouldn't touch your
question for a mere $3.

Tips, being strictly optional, are not something I can count on to
compensate me for the time spent researching a question like this.  I
choose my questions based on the fee offered and whether or not I can
provide the value for that fee.  I simply cannot afford to spend
several hours on a question from which I will only earn $2.25, in the
hopes that the customer will pay me later.  I value my time and
researching abilities such that I will put them to use where the
customer places similar value on them.

You really do stand a better chance of getting your answer if you
review the pricing guidelines and adjust your bid accordingly.

Respectfully,

Missy

tsurugi,

I agree with my colleagues who have posted above. Although tipping is
a wonderful thing, the promise of a possible tip is seldom enough to
coax me to do a sizeable amount of research unless I am very familiar
with the customer who is making the offer. A higher price up-front
will usually get faster and better results than a low price with the
possibility of a tip. I wish it were otherwise, since Researchers are
paid only 75% of the question price, but are paid 100% of a tip. The
sad fact is that some customers who offer tips do not follow through.
This has caused many Google Answers Researchers to be cautious about
such offers, unless a customer has a lengthy track record on GA. As
mentioned by missy, after your question has been answered, you can
work with your Researcher to fine-tune the results by using the
Clarification process. If all else fails, and you are still
dissatisfied by your answer, you have thirty days in which to request
a refund.

Tsurugi,
Here is a site that give some information on  all 50 states and DC.

http://www.mbinet.org/web/links/codes.html

IN georgia, for example, it says which building industries are
licensed (electricians, plumbers, etc.) but says that everything else
is controlled at the county level.

I picked Georgia because I know it has lots of counties, 159 to be
exact, so you can see what is ahead of you to answer the second
question.

http://www.answers.com/topic/list-of-counties-in-georgia


(You can hope Texas with 250+ counties has a state code.)
From what I have learned about G-A, this is about as much research
effort as one should expect for a low-priced question, but this a free
comment  -
just to illustrate what a full answer to your question would involve.
Myoarin

I've been burnt too many times to bother with promises of tips. See
this recent encounter.

http://answers.google.com/answers/search?q=yeatman+czh&qtype=all