My question has to do with the 1869 Slovakia census.  I am searching for the town of Medzilaborce.  Any suggestion what county to look for this town?

Here is some translated information about the census, provided by the Hungary State Archives:

Transcarpathian Territorial State Archives 1921 census documents

One of the newly emerging countries after the First World War was the Czechoslovak Republic, proclaimed on October 28, 1918 in Prague. The territory of present-day Transcarpathia, also known as Podkarpatska Rus, came under the rule of this country. 

The 1921 census in Czechoslovakia was adopted by the National Assembly of the country on April 8, 1920, Resolution 256/1920. s. ordered by law. The law provided that the census was to be conducted everywhere between November 1, 1920, and March 31, 1921, including in Transcarpathia, which is now part of Ukraine. The material of the census has survived almost entirely. 

During the digitization of the approximately 270,000 pages of documents kept in the Beregszász branch of the Transcarpathian Regional State Archives, the summary sheets (settlement, street name and number, with the name of the owner) and census forms indicating the data of the inhabitants of the given dwelling (name, date of birth, place, mother tongue, religion, occupation, etc.) based on the houses (flats) of the settlements. The latter can be an extremely rich source of both historiography and genealogy. 

The pre-printed bilingual questionnaires - Czech and Hungarian - were filled in a smaller part with a pen and a larger part with a pencil. 

The conservation and digitization of the documents was carried out by the Archives of the Capital of Budapest in 2017 with the support of the Hungarian Ministry of Foreign Affairs and Trade. 

Joe Straskulic was a neighbor when I was growing up. He drove the school bus that took me to Jr. High on Apple Street and later to High School.

Lucky us!   After years of waiting, some of the census records for Podkarpastka / "Subcarpathian Rus" , which is now in present-day Ukraine, in the years when it was a Czechoslovakia or Hungary territory are becoming available online.   The source is the Hungarian National Archives.   You can find it online at:

https://library.hungaricana.hu/hu/collection/KarpataljaiNepszamlalas1921/

I am publishing a guide for how to  use it.  You need to know your Hungary county (Ung, Mamaros, Bereg, etc.) and district.   The villages are all arranged by their Magyar name, so make sure you know that before you start.   Right now my guide is in a very primitive.   I'll let you know where the docs are posted on my web site.  I will add a header on the page below when I get it up and running..  http://iabsi.com/gen/public/CensusMain.htm

Most of the Hungary census records are aggregated data, not specific names, as most of the details were destroyed long ago.  Only the 1921 census has people's names.    The other census are useful for many purposes as they break down data by age, work, gender, religion, ethnicity.

Back when I was crazy possessed with genealogy and digging out all sorts of details of our villages and people, I created a web site.  It was formed during an exciting period of time, when the Family History Center and Ellis Island Foundation began to put their records on line.   Before this, it was all microfilm, microfiche or impossible trips to national archives.

It's mostly oriented towards those with villages in Slovakia, but it equally applies to all of Slovakia, and also applies to the former territories of Hungary (including Romania, Ukraine, etc.)  I have not updated it in a number of years, but the strategy remains 100% solid and most of the links still work.

Here is the page from my site providing an overview of Hungary census records and the information they contain.   http://iabsi.com/gen/public/CensusMain.htm