Compare towns
Sidney vs Castle Hill vs Union
Cost, people, housing, commute and schools, side by side, each benchmarked against Maine.
What stands out worked out from the figures below
Sidney has the most expensive homes ($336k median).
Castle Hill has the most affordable homes ($145k median).
Union has the most people working from home (15.9%).
What matters to you?
Pick a few. We’ll pull those rows to the top and mark which town comes out ahead on each. There’s no overall score: what matters is up to you.
| Measure | Sidney | Castle Hill | Union |
|---|---|---|---|
| Your priorities | |||
| People | |||
| Population | 4,790Highest |
281Lowest |
2,663 |
| Growth since 20102010 → 2020 census | +10.4%Highest ME: +2.6% |
— | +5.5%Lowest ME: +2.6% |
| Median age | 43±5.5 4% below ME |
57.8±15.8Highest 29% above ME |
41.6±5.3Lowest 7% below ME |
| Castle Hill and Sidney are within the Census margin of error here, so we can’t say which is really higher. | |||
| Kids under 18 | 23.1%±5.6 ME: 18.1% |
14.2%±5.8Lowest ME: 18.1% |
24.9%±4Highest ME: 18.1% |
| Union and Sidney are within the Census margin of error here, so we can’t say which is really higher. | |||
| Age 65+ | 18.4%±3.6Lowest ME: 22.4% |
44.8%±6.5Highest ME: 22.4% |
21.4%±3.1 ME: 22.4% |
| Bachelor’s degree+adults 25+ | 33.5% ME: 36.2% |
26.7%Lowest ME: 36.2% |
34.4%Highest ME: 36.2% |
| Enrolled in collegeshare of residents | 1.5%±1.2Lowest ME: 5.8% |
2.1%±5.3 ME: 5.8% |
3.5%±1.5Highest ME: 5.8% |
| Union and Castle Hill are within the Census margin of error here, so we can’t say which is really higher. | |||
| Cost of living | |||
| Household incomemedian | $83,488±$10kHighest 12% above ME |
$54,250±$14kLowest 27% below ME |
$80,724±$9k 8% above ME |
| Sidney and Union are within the Census margin of error here, so we can’t say which is really higher. | |||
| Home valuemedian, owner-occupied | $336,200±$34kHighest 13% above ME |
$145,300±$18kLowest 51% below ME |
$267,600±$42k 10% below ME |
| Sidney and Union are within the Census margin of error here, so we can’t say which is really higher. | |||
| Rentmedian gross, monthly | $1,340±$304Highest 18% above ME |
$950±$574Lowest 17% below ME |
$1,179±$452 4% above ME |
| Sidney and Union are within the Census margin of error here, so we can’t say which is really higher. | |||
| Property taxmedian, yearly | $2,474 19% below ME |
$1,449Lowest 52% below ME |
$3,276Highest 8% above ME |
| Renters paying 30%+of income on rent | 16.4%±17.5Lowest ME: 48.4% |
75%±100Highest ME: 48.4% |
24.6%±19.8 ME: 48.4% |
| Castle Hill and Union are within the Census margin of error here, so we can’t say which is really higher. | |||
| Below poverty line | 6.4% ME: 10.7% |
4.3%Lowest ME: 10.7% |
10.2%Highest ME: 10.7% |
| Housing | |||
| Homeownersof occupied homes | 89.4% ME: 74.3% |
94.3%Highest ME: 74.3% |
85.9%Lowest ME: 74.3% |
| Typical home builtmedian year | 1996Highest 19 yrs newer than ME |
1982 5 yrs newer than ME |
1979Lowest 2 yrs newer than ME |
| Getting to work | |||
| Average commuteone way | 25 min about the ME average |
19 minLowest 24% below ME |
29 minHighest 20% above ME |
| Work from home | 14.3%±5.9 ME: 15.9% |
10.3%±9.8Lowest ME: 15.9% |
15.9%±5.3Highest ME: 15.9% |
| Union and Sidney are within the Census margin of error here, so we can’t say which is really higher. | |||
| Schools | |||
| Public school scoresrank in state, math + reading | #15 of 133 in ME | — | — |
| School district | RSU 18 | — | RSU 40/MSAD 40 |
| High school in town | None in town | — | None in town |
| On TownTapestry | |||
| Old photos in Our Story | None yet | None yet | None yet |
ME average · Sources: U.S. Census Bureau, American Community Survey 5-year estimates 2020–2024; 2010 & 2020 decennial census; NCES Common Core of Data. “±” is the Census margin of error. Property tax is top-coded by the Census at $10,000+. School rank compares math and reading proficiency against the state average.