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CM21 vs CM23

Overall measures differ. Gaps below are by category, not a ranking of the places.

This reflects published infrastructure and environmental data. It does not measure the people who live here, house prices as a marker of status, or safety.

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CM21

East Hertfordshire, East of England

84% used

The above measure is consistently above typical UK levels across categories, led by healthcare access and schools.

How this 85 was calculated

  • Schools

    93/100·24% of the measure

    100% of 9 rated schools nearby are good or outstanding

    A higher measure means a larger share of nearby rated schools are good or outstanding, and the closest school is nearer.

    Get Information About Schools, including Ofsted judgements, published August 2026. Measured for the CM21 postcode district.

  • Transport

    83/100·20% of the measure

    Sawbridgeworth Rail Station is 0.7 miles away

    A higher measure means a closer railway, metro or tram station and more bus stops within a ten minute walk.

    NaPTAN public transport access nodes, published August 2026. Measured for the CM21 postcode district.

  • Flood risk

    86/100·13% of the measure

    Nearest flood warning area is 0.7 miles away

    A higher measure means fewer designated flood warning and alert areas nearby, not more flooding. Live alerts and warnings are not part of this measure.

    Flood warning areas, published August 2026. Measured for the CM21 postcode district.

  • Broadband

    79/100·13% of the measure

    64% of premises can get gigabit broadband

    A higher measure means more premises can order faster broadband, not a slower connection.

    Connected Nations fixed broadband and mobile coverage, published August 2026. Measured for the CM21 postcode district.

  • Housing market

    87/100·10% of the measure

    113 recorded sales, median £427,000

    A higher measure means more recent recorded sales and more stable prices. It is not a higher house price.

    Price Paid Data, published August 2026. Measured for the CM21 postcode district.

  • Healthcare access

    94/100·8% of the measure

    Nearest GP practice 240 yards away

    A higher measure means a closer GP and hospital, and a shorter published waiting time when one is available.

    Organisation Data Service directory, published August 2026. Measured for the CM21 postcode district.

  • Air quality

    85/100·6% of the measure

    PM2.5 annual mean 7.0 µg/m³, modelled for 2023

    A higher measure means lower modelled nitrogen dioxide and fine particulate levels, not dirtier air.

    UK-AIR automatic monitoring network, published December 2023. Measured for the CM21 postcode district.

  • Council tax

    59/100·6% of the measure

    Most homes are band C (24% of them)

    A higher measure means a larger share of homes in bands A to C, which typically means a smaller bill, not a higher one.

    Council tax band and charge data, published March 2024. Measured for this neighbourhood.

Not counted for this area

Amenities, Green space. We could not obtain published figures here, so these categories were left out and the remaining weights scaled up to fill the gap. A missing dataset never counts against an area.

This reflects published infrastructure and environmental data. It does not measure the people who live here, house prices as a marker of status, or safety.

Area Measure v1.1, covering 84% of the published formula. See the full weightings and worked example.

Showing CM21

Category gaps

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A higher measure means a larger share of nearby rated schools are good or outstanding, and the closest school is nearer.

20% of measure

These areas are within 1 point of each other.

CM21

93/100

100% of 9 rated schools nearby are good or outstanding

A higher measure means a closer GP and hospital, and a shorter published waiting time when one is available.

7% of measure

These areas measure the same on this category.

CM21

94/100

Nearest GP practice 240 yards away

Higher is always the stronger published result on that measure. See the weightings. Missing categories are dropped from that area’s overall figure, not scored as zero. Crime and other context stay on each report.

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CM21

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CM23

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