Not sure about split of household incomes, I dont think they produce a table for that. But table B19325 from the Census Bureau's American Community Survey (ACS) has sex by income broken down into ranges. You'd have to us $75,000 + as they don't have it at $80,000+. The top two categories are $75k to $99k and $100k or more.
here is a direct link to the table:
MIT Election Data and Science Lab
They state that "Our lab is a clearinghouse for data sets that can fuel studies on elections and how they're conducted. Find election data and research tools produced by us and others."
Best place to find an election data
Voter Registration - By County and Party
United States Census Bureau
In addition to the Voting and ...
New York City WiFi Hotspots
Every public WiFi hotspot in New York City.
This dataset is now hosted and updated daily here
The dataset consists of records for every public WiFi hotspot (ones provided by or in partnership with the city) in New York City. It contains over 2500 records overall, and is current as of August 11, 2017.
NYC Wi-Fi Hotspot ...
Hospital General Information
General information & quality ratings for almost all US hospitals
This file contains general information about all hospitals that have been registered with Medicare, including their addresses, type of hospital, and ownership structure. It also contains information about the quality of each hospital, in the form of an ...
For data related to households, you can get pre-1990 data from NHGIS
Keep in mind, the U.S. Census changed the way the collect their "sample data" (items beyond the basic population county by age/race/sex - i.e. income, employment, etc) after the 2000 Census, when they switched to the American Community Survey (ACS). See the write up ...
You can download a comprehensive file through UMich's ICPSR repository (sign up is free):
Here's a sample of the data – I believe the ICPSR's ToC doesn't allow publicly redistributing the full copy, but you'll get an idea of what it contains before signing up: