Describe the likely political history of the previous hypothetical county

[thebeloitmoderate]

I have 4 counties I made and their histories will be coming up in the next few days only small descriptions after the names.
Casmir County Wisconsin (The most Polish county in America, working class mid sized city some small suburbs, and mix of farmland/forest countryside.)
Gebirge county Missouri (Rural predominantly German county in the Ozark mountains with a German influenced county seat and the largest rural Oktoberfest in America)
Santos county Washington (The most Hispanic county in the West coast even outpacing CA, though 1/5's of them are undocumented, has a meatpacking plant, Amazon distribution facility, and 2 small cities each with 95% Hispanic population.)
Mariana Rosas county Illinois (Suburban Chicago county that is ethnically, racially, linguistically, and religiously diverse, one of 2 counties in America alongside Queens county N.Y where multiple languages are spoken and 60 percent of the population speaks English as a first language. Has a slight native American reservation in the rural northwest portion of the county and the Indians (Natives) are way more integrated to suburban life than in any other county in America besides Oklahoma county making it the only county in America where Whites, Blacks, Hispanics, Asians, Pacific Islanders, and Native Americans each make up a chunk of the population.)

[thebeloitmoderate]

I have 4 counties I made and their histories will be coming up in the next few days only small descriptions after the names.
Casmir County Wisconsin (The most Polish county in America, working class mid sized city some small suburbs, and mix of farmland/forest countryside.)
Gebirge county Missouri (Rural predominantly German county in the Ozark mountains with a German influenced county seat and the largest rural Oktoberfest in America)
Santos county Washington (The most Hispanic county in the West coast even outpacing CA, though 1/5's of them are undocumented, has a meatpacking plant, Amazon distribution facility, and 2 small cities each with 95% Hispanic population.)
Mariana Rosas county Illinois (Suburban Chicago county that is ethnically, racially, linguistically, and religiously diverse, one of 2 counties in America alongside Queens county N.Y where multiple languages are spoken and 60 percent of the population speaks English as a first language. Has a slight native American reservation in the rural northwest portion of the county and the Indians (Natives) are way more integrated to suburban life than in any other county in America besides Oklahoma county making it the only county in America where Whites, Blacks, Hispanics, Asians, Pacific Islanders, and Native Americans each make up a chunk of the population.)

Do you have any guesses for my county?

I guess was safely D until 2000 and voted for Obama in 2008 12 Trump 16 and Biden 20

[thebeloitmoderate]

The last county all voted straight D since 1992 but when it was won in 92 it was narrow D and the same thing in 96, but in 2000 it widened a little bit, 2004 widened more, 2008 widened even more, 2012 and 16 the same, and in 2020 because of sizeable Hispanic/African american population D again but more narrow than in the previous 3 elections wider than in 04 but best GOP performance since 2004 as well

[thebeloitmoderate]

Since Beloitmoderate didn't give a county, I'll offer one:

Name: Narragansett County
State: Rhode Island
Location: Southeast Rhode Island
Population: 115,000
Largest City: Peterboro
Demographics: 50% White Anglo (mostly Portuguese, Italian, and Irish) 40% Latino (mostly Puerto Rican and Dominican), 9% Black, 1% Other
MHI: $53,000
Economy: Historically rooted in the textile industry, shipping, and whaling. Presently not very economically vibrant, with a large number of commuters to Providence.
Other notes: Peterboro is an overwhelmingly Latino ex-industrial town, while the rest of the county is predominantly middle-class exurbia to Providence. There's a history of nasty racial tension in the community.

I actually had the first 2 counties but I will be working in it in the not too future

[thebeloitmoderate]

Here is my 4 Hypothetical counties from weeks ago
Casmir county Wisconsin (The most Polish county in America and all the cities/towns names except the reservation area has Polish names in it with a world record breaking building in the county seat.)
Gebirge County Missouri (A ethnic German county located between the Taum Sauk Mountains and the Ozarks with German influence architecture and with the most unusual voting pattern not just in rural Missouri but in rural non college America as well.)
Monte Nevada county Washington (Similar to the Yakima valley and a rename of the county I have posted weeks ago otherwise the same a huge Hispanic population with the highest percentage of Hispanics in a county in the West Coast even exceeding California itself. A huge agricultural industry alongside a Amazon Distribution Center.)
Mariana Rosas county Illinois (A extremely suburban Chicagoland county with a rural area to the NW side of the county this county has a Multicultural/Ethnically Religiously and racially diverse county in which each plurality of the population is White/Hispanic/Black/Asian/Pacific Islander/ and Native American making it similar to Oklahoma county in which there is a integrated suburban Indian population.)

[thebeloitmoderate]

A diverse county but also bellweather minus 1980 2020
Name: Beach County
Location: About Halfway between Philadelphia, and New York City

Population: 990,000

State: New Jersey

Largest City: Teddington (Population: 98,000)

Demographics: 45% White (Historically Irish, and Italian, but with a recent increase in Orthodox Jewish, Former Soviet immigrants moving from NYC/Philadelphia), 19% Black (Mostly ADOS, But with a growing immigrant African/Caribbean population), 11% Asian (Mostly Chinese, and Vietnamese in stark contrast to North Jersey which is mostly Indian, and Korean) 23% Hispanic or Latino (Quite diverse for a central Jersey county outside Mercer), 2 percent Other

MHI: $110,000

Residents with a college degree: 38%
Geography: SW portion is mostly swampy with remnants of the Pine Barrens, the rest is a bit forested, but also very urbanized with recently built suburbs which is rapidly growing unlike the rest of NJ, Northeast. A branch of I-95 Would go towards the more rural part. Lots of distribution centers, from Amazon to Boeing, as well as the bases for the 76ers, and Flyers. Since this county is so large and populous for NJ Standards. The southern, and central half uses Philadelphia TV, While the Northern half uses New York TV Stations,

History: The county was originally called King Richard County by a British settler in colonial NJ. Around 1779 a decisive battle of the Revolution took place Ending British rule in the upper/middle colonies. Once the revolution ended, NJ Became a state in 1787, it was renamed to Beach county by then governor William Livingston because of the coastal scenery. This county remained rural while Teddington became the county seat shortly after NJ declared statehood. This county was one of the first to accept Free Slaves and did not banned interracial marriage like NJ as a whole. Though in the late 19th century immigration from Italy, and Ireland, alongside with a few from Germany, and Jewish immigrants from Russia,and Poland changed the demographics alongside Free Blacks from the great migration moving to the north. The Blacks was treated well unlike most northern cities which had redlining, and was home to the first Black middle class north of the Mason Dixie Line. During the 1920s, and 1930s the population declined a bit as bloody mob wars between Irish-American crime families and the Mafia took place, and not even the Great Depression prevented the decline to stem off. Around that time factories was also being built attracting many NYC, and Philadelphia transplants making it the first hints that the county population would grow dramatically. Around the end of WWII the county's population for a super long time was around the 10 to 30k range but suburbs was about to be built, with the first being Shoreline City, located in the SW portion of the county around 1947-48. This attracted about 5,000 residents mostly from NY and Philadelphia, but also from Teddington as well. The 2nd and 3rd suburbs were called Freedom City, and Beachshore Heights. The first suburb was basically the Black version of Shoreline City located in the southern portion of the county and attracted many African Americans fleeing the South in one of the last big decades of the Great Migration, and the second city located in the Jersey Shore which attracted many wealthy families from NY, North Jersey, and South Jersey. The population increased to 70k around 1960, Teddington hitting 45,000 Residents around this era. The population increased by 1k each year from 1960 to 1965 when it hit 75,000 I-95 was built but did not served the future suburban areas or Teddington The county voted for JFK in 1960 by a narrow margin, but in 1964 this county voted 95 percent for LBJ in one of the biggest margins of victory for a non urban county in America. Despite the factories of the early part of the century closing this county or especially Teddington thankfully did not experienced population decline Around 1965 a urban planner from NYC known as Timothy O'Neill began to survey the less forested areas of the county in what many people call in future decades : The Savior of New Jersey. Around this time less blue collar, and more white collar jobs came to the county more and more suburbs were being built in the northern and southern edges of the county attracting 20k people each year until 1974 further increasing the population to 175,000 once the 1970 census came. The chaos that NYC had with increasing crime rates during the late 1960s, and early 1970s, Mayorship of Frank Rizzo in Philadelphia, and also the 1967 Newark/Camden Riots also contributed to a increase in Black Lower class White, and Hispanic residents. Around 1974 255k residents called that county home, Teddington Hit it's peak population with 118k. The population of this county saw further growth from 1975 to 1987 as more and more people left Philadelphia, New York City, and North Jersey especially Newark, and Paterson making it 555k one of the fastest growing counties in American history that is not a sunbelt county. However during that same time Teddington saw it's population go down from 118k to 85k as even the residents of that city felt too crowded to be in a already big suburban town. The suburbs were being built rapidly during those 12 years as well. Then around 1990 the population growth began to slow down with only 586k residents in the new census, alongside some NY/Philly residents returning to both cities proper, and suburbs of their respective cities. The county's population shrank to 576k around 1997 as NYC/Philadelphia transplants began to move back to either the core cities, or especially move to the sun belt/California. Around the 2000s, and 2010s thanks to International immigration, and a surprisingly liberal immigration policy, the county's population began to SKYROCKET especially immigrants from the Former USSR, Yugoslavia fleeing the country's war, Africa especially The congo countries, the Caribbean, and China/Vietnam although there was a slightly lower Puerto Rican migration, and Orthodox Jewish migration from Lakewood/NYC. The population increased to 776K in 2010 thanks to the 2 mentioned factors. Amazon built a new distribution center in 2012, alongside a Facebook storage center around 2014, contributing to new growth from IT people fleeing North Jersey, and the West Coast. Also during that time Hasidic Jews began to grow somewhat rapidly, and that county voted for Christie in 2009/13, Murphy in 2017, and Ciattarelli in 2021, despite the diverse population this county acts as a bellwether ironically. And also despite being hit hard during the earlier months of COVID-19 this county somehow avoided the spike in deaths, and cases during the winter wave in 2020, Delta, and Omicron waves. Likely a more educated Jewish population unlike Lakewood/Brooklyn, and not hardcore MAGA type.
Bellwether county, except 1980 when it narrowly voted for Jimmy Carter. 2000/04 saw the county vote for Bush, likely due to it's college aged Country Club Republican type, in 2008 it went for Obama, and 2012 Obama again more wider likely due to Hurricane Sandy. 2016 saw the county vote for Trump likely due to the Orthodox Jewish population, and less college educated immigrant population ironically. 2020 Saw the county vote for Trump for a slightly wider margin likely due to rapid Orthodox Jewish growth, alongside the same reason as above.