方法论
了解URCity的数据来源、计算方法和质量标准。
数据来源
我们仅使用来自政府机构和知名研究组织的官方、经过验证的数据来源。
美国数据
- C2ER — Cost of Living Index
- Bureau of Labor Statistics — Consumer Expenditure Survey
- Bureau of Economic Analysis — Regional Price Parities
- Zillow Research — Home values, rents, price per sq ft
- HUD — Fair Market Rents
- US Census Bureau — Population, income, education
- NOAA — Climate normals
- Tax Foundation — State and local tax rates
- EIA — Natural gas prices and electricity costs
- FCC — Broadband availability
英国数据
- Office for National Statistics — Cost of living, earnings
- Rightmove — Home values and rental prices
- HMRC — Tax rates
- Met Office — Climate data
- Ofcom — Broadband availability
- Ofgem — Gas and electricity price caps
- Water UK — Water utility costs
加拿大数据
- Statistics Canada — Cost of living, income, demographics
- CREA — Home values and sales data
- CMHC — Rental market data
- Environment Canada — Climate data
- Canada Revenue Agency — Tax rates
- ISED — Broadband data
- Canada Energy Regulator — Natural gas and electricity prices
生活成本指数
我们的生活成本指数基于C2ER方法论。全国平均值设为100。120分表示该城市比平均水平贵20%。
供暖与制冷成本估算
供暖和制冷成本使用基于物理的模型计算，该模型考虑当地气候、房屋特征以及区域燃料/电价。
供暖：月HDD × 0.16 therms/HDD × 当地燃气价格。制冷：月CDD × 3.5 kWh/CDD × 当地电价。度日数（HDD和CDD）
使用正弦模型从每个城市的夏季最高温和冬季最低温推导得出。HDD衡量65°F以下的供暖需求；CDD衡量75°F以上的制冷需求。
房屋特征
假设为典型混合年代房屋，配备燃气供暖和中央空调。供暖和制冷系数根据国家的保温标准、房屋面积和系统效率进行调整。
当地燃料和电价
来自官方来源的州/省级天然气和电价：
- US: EIA state-level prices (e.g., Texas: $0.95/therm, New York: $1.40/therm)
- UK: Ofgem price cap (~£1.90/therm)
- Canada: Provincial utility rates (e.g., Ontario: C$1.10/therm)
示例估算
远程工作评分
我们的远程工作评分（0-100）结合五个加权因素，衡量一个城市对远程工作的支持程度。
房屋拥有成本计算器
我们的房屋拥有真实成本计算器使用标准摊销公式加上当地成本因素。
货币与温度转换
城市页面上的所有货币值和温度均可实时转换。
货币
实时汇率。
温度
网站上所有气候数据即时°F/°C转换。
自动检测
使用浏览器时区和语言设置预选适当的默认值。
数据时效性
| 数据类型 | 更新频率 | 最后更新 |
|---|---|---|
| Cost of Living | 每季度 | June 2026 |
| Housing | 每月 | May 2026 |
| Demographics | 每年 | 2024 ACS |
| Climate | 历史数据 | 1991–2020 normals |
| Taxes | 每年 | 2026 |
| Exchange Rates | 实时（API） | Real-time |
| Heating Estimates | 每次刷新 | June 2026 |
| School Data | 每年 | 2024–2025 school year |
| University Data | 每年 | 2025 CWUR rankings |
School Quality Score
The School Quality Score is a composite index (0–100) that compares each city's K-12 school system against other cities in the same country. The calculation varies by country based on available data.
United States
- Student:Teacher Ratio (40%) — Lower ratios indicate smaller class sizes. Each city's ratio is ranked against all other US cities.
- Free/Reduced Lunch Rate (40%) — A lower percentage of students eligible for free or reduced-price lunch indicates lower economic disadvantage. Inverted so a lower rate produces a higher score.
- School Level Diversity (20%) — Cities with schools at all three levels (elementary, middle, high) receive full credit.
United Kingdom
- Free School Meal Eligibility (60%) — Lower FSM eligibility indicates lower economic disadvantage. Each city is ranked against all other UK cities.
- School Level Diversity (40%) — Cities with schools at all three phases (primary, secondary, special) receive full credit.
Canada
- Top-Rated Schools (50%) — Number of Fraser Institute ranked schools per city. Each city is ranked against all other Canadian cities.
- School Level Diversity (50%) — Cities with schools at all three levels (elementary, middle, high) receive full credit.
Data Sources
- United States: National Center for Education Statistics (NCES) — Common Core of Data (CCD), 2024–2025 school year
- United Kingdom: Department for Education (DfE) — Schools, pupils and their characteristics, January 2025 census (England only)
- Canada: Fraser Institute School Performance Rankings, 2023–2024
- Coverage: 157 cities across 3 countries (US: 137, UK: 10, Canada: 10) with city-level data
University Data
University presence and ranking data is available for all 1,767+ cities across 68 countries and territories. For each city, we determine:
What We Collect
- University presence — Whether the city has at least one university
- Total universities — Count of universities in the city
- Top-ranked university — Name and global rank of the highest-ranked university
- Top-500 count — Number of universities ranked in the global top 500
Data Source
- Center for World University Rankings (CWUR) — 2025 edition
- Supplemented by a comprehensive world universities database
- University names matched to URCity cities using name variations and country-level filtering
- Coverage: All 1,767+ cities across 68 countries and territories
局限性
生活成本指数为平均值，可能无法反映您的具体生活方式。
住房数据为全市范围；社区之间可能存在显著差异。
税收计算已简化，未考虑所有扣除项。
气候数据为历史数据；未来天气模式可能有所不同。
供暖和制冷估算基于典型房屋特征，可能因房屋面积、保温、系统效率和当地费率而有所不同。
汇率由第三方API提供，可能存在轻微延迟。
重要免责声明
本页上的所有方法论描述、数据来源和计算仅供信息参考。URCity和Northshore Press不保证任何数据的准确性、完整性或时效性。此内容不构成财务、法律、税务或房地产建议。在做出搬迁或财务决策前，请务必咨询合格的专业人士并独立核实数据。
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