为每个区域填色
颜色深浅代表数值。适合比率、占比和人均指标——这些数字已经消除了面积和人口规模的影响。
打开模板全部地图
Ohio County Map Maker
A blank Ohio county map to print, and a builder to fill it with your own data. Download the free outline of all 88 counties, or upload a spreadsheet and publish an interactive Ohio map you can embed anywhere.
Ohio 空白地图，免费下载
全部 88 个counties，线条干净的轮廓图。可打印、可填色、可放进文档——无需注册，也无需署名。
任何用途均可免费使用，包括商用与课堂。由编辑器所用的同一套边界数据生成。
下载 SVGOhio 地图能看出什么
Ohio divides into 88 counties, and it is one of the better-behaved states to map. The counties are compact and fairly even in size, so no single shape swallows the picture, and 88 is few enough that a reader can take in the whole state at a glance. What the geography shows is a state with several centres rather than one. Franklin County holds Columbus in the middle, Cuyahoga holds Cleveland in the north-east and Hamilton holds Cincinnati in the south-west — the three Cs that most Ohio statistics end up being about — while the Appalachian counties along the Ohio River in the south-east consistently sit at the other end of almost every measure the state publishes. That contrast is the argument a county map of Ohio is usually making, and it is invisible in any statewide average.
Ohio 的三种画法
数值是比率时给区域填色，是计数时用大小不同的标记。把这两者用反，是数据地图最常见的误导方式。
什么时候该画 Ohio 地图
Your data is reported by Ohio county
Ohio Department of Health indicators, ODJFS labour and caseload figures, Department of Education report cards and Secretary of State election returns are all published by county.
You are showing a rate or a share
Unemployment rate, overdose deaths per 100,000, graduation rate, share of the vote. Rates are already adjusted for population, which is what shading a region needs.
You want to show the Appalachian divide
The gap between the metro counties and the 32 counties of Appalachian Ohio runs through health, income, broadband and school funding alike. On a county map it reads as one shape on the page instead of a footnote.
You need a blank map to print or fill in
Classroom exercises, campaign planning, colour-by-hand sessions. The free outline above prints cleanly at any size.
什么时候不该画 Ohio 地图
You are mapping totals rather than rates
Shade by a raw count and Franklin, Cuyahoga and Hamilton win every time — they hold roughly a third of the state between them. Use symbols or bubbles sized by the count instead.
Your unit is a city or a school district
Ohio has more than 600 school districts and its municipalities annex across county lines. Mapping either onto 88 counties will misplace the thing you are describing.
You are comparing city neighbourhoods
Cuyahoga County is one shape whether Cleveland's east side and its western suburbs look alike or nothing alike. Below the county line, use ZIP codes or census tracts.
Only a few counties have data
A map with sixty grey shapes and twenty-eight coloured ones is a worse bar chart. If coverage is patchy, rank the counties you do have.
如何制作 Ohio 地图
从表格到发布上线，一步一步来。
Download the blank map, or start from the template
The free outline above is a plain SVG of all 88 counties — print it, or drop it into a document. To build with data, open the PlotSet Ohio (counties) template, which comes with sample data already bound.
Prepare a county column and a value column
One row per county: the county name or its five-digit FIPS code in the first column, your number in the second. FIPS codes for Ohio all begin 39.
Upload or connect your data
Import a CSV or Excel file, paste from a spreadsheet, or connect a Google Sheet so the map can be refreshed when the source updates.
Pick the style that fits the measure
Shade the counties for a rate, or switch to symbols or bubbles for a count. Same geography, same data, different encoding.
Choose a colour scale on purpose
Sequential for a low-to-high measure, diverging only when a real midpoint exists — the state average, zero change, a 50 per cent line. Four to six steps read more precisely than a smooth gradient.
Publish, embed or export
Publish for a live interactive map with a tooltip on every county, or export a PNG, SVG or PDF for a report or a deck.
从已加载示例数据的 Ohio 模板开始，再换成你自己的数据。
打开模板让 Ohio 数据正确匹配
地点列应该长什么样，以及去哪里找现成能对上的数据。
All 88 counties, spelled as the state spells them
Watch the ones that break a join: Wyandot has no final 'te', Tuscarawas, Ashtabula, Coshocton, Guernsey, Champaign and Licking all get typed from memory and mistyped. Matching on FIPS avoids every one of these.
Ohio FIPS codes start at 39
39001 is Adams, 39175 is Wyandot. Store the column as text so the leading digits survive, and note that the county part is odd-numbered rather than sequential.
Many Ohio county names exist in other states too
Adams, Union, Washington, Monroe, Jackson, Franklin, Clark and Warren all appear in a dozen states. If your table covers more than Ohio, join on FIPS or you will import somebody else's county.
Where to get Ohio county data
The Ohio Department of Health, the Department of Job and Family Services, the Department of Education and Workforce, the Secretary of State and ODNR all publish county tables, as does the Census Bureau's ACS.
Ohio 地图上的常见错误
Shading counts instead of rates
It produces a population map every time. Anything that grows simply because more people live there should be a sized symbol, not a shade.
Reading the three metro counties as the state
Franklin, Cuyahoga and Hamilton are loud on any map because that is where the people are. If your story is about rural Ohio, say which counties you mean and consider mapping them on their own.
Joining on names without checking spelling
Wyandot and Wyandotte are different counties in different states, and a silent mismatch leaves a blank shape rather than an error. Join on FIPS where you can.
Using a rainbow colour scale
A sequence of hues has no natural order, so readers cannot tell high from low without checking the legend on every county. Use one hue, light to dark.
Ohio 地图常见问题
Yes. The outline above is a free SVG of all 88 Ohio counties — right-click to save it, print it, or drop it into a worksheet or document. No account needed.
把你的数据放到 Ohio 地图上
上传表格，几分钟内发布一张交互式地图——免费，无需信用卡。