When meeting Korean families looking for homes in Anchorage, there's a point where they stop scrolling right from the first screen. It's the school score written small below the property photos. Whether it's Zillow or Redfin, as soon as you enter an address, the assigned school name and a single number appear, and many people filter neighborhoods based solely on that number.

However, when asked what that score actually measures, many struggle to answer. The school scores displayed on real estate sites are mostly ratings given by a nonprofit organization called GreatSchools. They are rated from 1 to 10, with a score closer to 10 indicating a higher ranking within the same state.

Understanding how this score is derived is not as simple as it seems. According to GreatSchools' own explanation, it reflects test scores, academic growth, college readiness, and equity indicators. For elementary and middle schools, test scores and growth are each weighted equally, while for high schools, test scores, growth, and college readiness are divided into three parts.

If you actually look at the Anchorage school district, there's quite a range. Eagle River Elementary School has a GreatSchools score of 9, while Kincaid Elementary School has a score of 8. However, there are also schools within the same district that have much lower scores. The reason for the score differences, even if they are just a few miles apart, is not necessarily due to the absolute quality of the schools themselves, but rather that test scores are somewhat related to the circumstances of the students' families.

Sometimes the numbers displayed on different real estate sites can feel slightly different, as Zillow and Redfin use GreatSchools scores directly, while Niche assigns its own ratings based on different criteria. Therefore, even for the same school, the numbers can vary between the two sites, so it's important to develop a habit of checking what factors contribute to that score, regardless of which site you are looking at.

Thus, relying solely on one score to eliminate neighborhoods is risky. Even with the same score of 8, there are schools that have consistently improved over the past few years and others that are declining. The GreatSchools page allows you to check trends by year, so it's better to look at the direction rather than just a single number.

GreatSchools also acknowledges this point. They indicate that test scores and growth alone cannot capture aspects like teacher quality, school atmosphere, and extracurricular activities. The score is just a reference, and how a child actually experiences that school needs to be filled in with other information.

There are also other factors to consider beyond test scores. The student-to-teacher ratio, reviews left by parents, and equity scores are important. The student-to-teacher ratio shows how many students each teacher is responsible for, so a lower ratio indicates that there is more capacity to pay attention to each child. The equity score shows how much performance gaps exist among different groups within the school based on income or disability, filling in aspects that are not visible through test scores alone.

Another often overlooked aspect is the school boundary. Even within the same zip code, it's common for assigned schools to differ with just a road in between. This means that the school shown on the real estate site may not be the actual school assigned to that house. It's safer to double-check the exact address on the Anchorage School District website before signing a contract.

In fact, while visiting properties, I've seen several cases where the assigned school changed due to just a road difference, requiring further investigation. If you find a house you like, it's a good habit to confirm the school assignment once more before signing the contract.

If you are a family moving from another state, there's one more thing to consider. Alaska has no state income tax, but the property tax structure may differ from the state you are coming from, so it's advisable to calculate the property tax burden, especially in neighborhoods with good school districts. These conditions can vary by county, so it's better to check the exact numbers in advance.

Ultimately, when viewing properties, it's important to develop a habit of not stopping at just one score but to delve into the details below it. By looking at trends, ratios, reviews, and the actual assigned address together, you can better determine if that neighborhood is right for your family. This is not investment or legal advice, and it's recommended to verify with a professional before finalizing any contracts.