I was unaware of a problem that is hitting most Suffolk schools hard — a declining number of students — until talking to a former college journalism student of mine, Tim Laube, now an administrator in the Eastport-South Manor Central School District.

“The drop in enrollment,” said Laube, “is directly attributable to affordability — the cost of living on Long Island.”

The cost of housing is now very high in Suffolk and the rest of Long Island and so many young people are leaving and not having children who would go to school here.

“They go off to college and don’t come back,” said Laube.

Where are they going? Laube spoke of a meeting he attended at which the speaker told of “20 new school buildings a year” being constructed in South Carolina.

Meanwhile, in his district, in which he is assistant superintendent for business and operations, there has been a reduction in students since 2010, when the total was 3,888, to “now 3,268. That’s a drop of 16 percent.”

As a result, the district has had to reduce staff and hiring. A further decline in students is foreseen.

From Sag Harbor, my school district, I obtained in exploring the issue a detailed “Long Range Planning Study,” a “Demographic and Enrollment Analysis” covering 2018 to 2027.

It was done for the district by the Western Suffolk BOCES Office of School Planning and Research. The study says the district “is expected to experience a decline in district K-12 enrollment during the projection period.”

Cited are “the challenges young adults face with high rent costs and with saving money for the down payment required to purchase a home.”

Also pointed to are “significant student loan debt” and “lower starting salaries.”

My wife and I purchased our first house — a seven-room home in Sayville — for $18,000 in 1964, A comparable house today would cost many, many times that.

Newsday reported last year that the median sale price of a house in Suffolk was $380,000, citing data from the Multiple Listing Services of Long Island.

The story’s headline: “LI HOME PRICES UP AGAIN,” and the article noted this was “a 7 percent increase from” the year before.  The median sale price in adjacent Nassau, meanwhile, was $525,000.

What would be the payments on a mortgage on a $380,000 house? An online “mortgage calculator” says with 4.5 percent interest, payments on a 30-year mortgage would be $1,925 a month. Then you have to figure on property taxes, 70 percent of which, ironically, goes to schools.

With other expenses, if two people are involved, both have to work — and scrape by.

That’s why it’s hello South Carolina, hello upstate New York, etc.

In Southampton and East Hampton towns, the median prices of houses are astronomical.

“The median price of homes currently listed in Southampton is $2,100,000,” reported Zillow last year. “The median price of homes currently listed in East Hampton is $1,595,000.” According to the online “mortgage calculator,” at 4.5 percent, payments on a $1 mortgage over 30 years would be $5,066 a month. To make payments of that kind you have to be loaded. 

Now not every school district in Suffolk has declining student enrollment. On stable Shelter Island, enrollment in the pre-K-to-12th grade Shelter Island School has “been steady,” its superintendent Christine A. Finn was saying last week.

“We watch enrollment very carefully. It’s 209 this year and was 213 last year.” But “all over Long Island declines in enrollment have been a trend.”

A key, she said, is high housing costs. When she graduated from Islip High School in 1980, it had a class of 400. “Last year the graduating class was 280.”

There is a desperate need on Long Island for affordable housing to deal with declining school populations and other issues.

Government on several levels are taking steps to encourage it.

The Babylon Industrial Development Agency has adopted a “landmark provision” aimed at the affordable housing problem. It has passed what it called a “significant policy initiative” targeting future housing developments within town borders.

Working with the Hauppauge-based Long Island Housing Partnership, the policy requires that owners of new developments applying for IDA benefits meet a 20 percent affordable-housing requirement – meaning at least one out of every five new units must be reserved for tenants earning less than the “area median income.”

Islip Town Supervisor Angie Carpenter has promoted affordable housing and points to, among initatives, an LGBT senior housing undertaking in Bay Shore that has 100% affordable units for those making between 60 to 80 percent of “area median income.”

In Riverhead, there has been a major drive to bring a great deal of affordable housing to downtown Riverhead. Speaking last year at the opening of the 45-apartment Peconic Crossing project downtown, Riverhead Town Supervisor Laura Jens-Smith said, “Peconic Crossing is the culmination of multiple levels of government, and private organizations working together to help revitalize Riverhead’s downtown.

With preference given to victims of Superstorm Sandy, and artists these new residents will help to transform our downtown through their creativity, and talent. Workforce housing like Peconic Crossing is key to our continued efforts to support our downtown, and I am happy to welcome them to Riverhead.”

Meanwhile, in Brookhaven Town, Supervisor Edward Romaine continues to advance affordable housing, something he has been committed to since 1980 when he entered public service as the the town’s first commissioner of housing and community development.

Among his most recent efforts is renovating abandoned or “zombie” homes to become affordable housing. As Mr. Romaine stated last year, “I would much rather restore a house and provide affordable housing to help stabilize a neighborhood than tear down houses.”

In Southampton Town, Supervisor Jay Schneiderman declared last month that too many people are being driven out of its communities because of housing costs, that the young can’t afford to live where they grew up. He sets more affordable housing as a priority.

As a forum on affordable housing last year organized by The Shelter Island Express, Mr. Schneiderman said: “When a workforce can’t live in the community, you lose part of your soul.”

And East Hampton Town Supervisor Peter Van Scoyoc called affordable housing on the South Fork a “crisis situation…We look around and see how the cost of housing is tearing away at the fabric of our community.”

There was a headline in the New York Post last month: “The exodus of New York City’s endangered middle class.”

The article below it said, “New York City’s shrinking middle class is in full retreat,” and cited were “the city’s high—and rising—housing and other living costs.”

We can’t let that happen here, impacting on our communities and decimating the numbers in new generations brought up in Suffolk.