Question: What county town of 26,000 does the A414 road run through?

Context paragraphs:
Hertford: Hertford (/ˈhɑːfəd/, /ˈhɑːtfəd/) is the county town of Hertfordshire, England, and is also a civil parish in the East Hertfordshire district of the county.  Forming a civil parish, the 2011 census put the population of Hertford at about 26,000.

Norton Mandeville: Norton Mandeville is a small village near the A414 road, in the Epping Forest District, in the English county of Essex.  Norton Mandeville has an Anglican parish church dedicated to All Saints.

Norton Heath: Norton Heath is a small village near the A414 road, in the Epping Forest District, in the English county of Essex.

Nine Ashes: Nine Ashes is a hamlet near the A414 road, in the Epping Forest District, in the English county of Essex.  Nearby settlements include the village of Norton Heath and the hamlet of King Street.

Bobbingworth: Bobbingworth is a village and civil parish in the Epping Forest district of Essex, England.  The village is situated approximately 3 mi north-west from Chipping Ongar, 10 mi west from the county town of Chelmsford, and lies off the A414 road.  Bobbingworth is in the parliamentary constituency of Brentwood & Ongar.

Double road race: The Double Road Race is a long-distance road running competition consisting of two segments or "legs" – a 10-kilometer road run, followed by a five-kilometer road run, with a short rest break in between.  The Double Road Race Federation added additional distances in August 2014.  Other official distances for Double Racing® include Double 5k (3+2), Double 8k (5+3), and Double 21k (15+6).  The race was created by Runner's World magazine founder Bob Anderson.

Highwood, Essex: Highwood is a village and civil parish in the Chelmsford District of Essex, England.  The village is approximately a mile south from the A414 road and four miles west from the centre of the county town of Chelmsford.  Loves Green is part of the village at its north.  The hamlet of Edney Common is at the east of the parish.

King Street, Essex: King Street is a hamlet near the A414 road, in the Epping Forest District, in the English county of Essex.  Nearby settlements include the village of Norton Mandeville and the hamlet of Nine Ashes.

A414 road: The A414 is a major road in England.  It runs from the A41 at a junction west of Hemel Hempstead in Hertfordshire, through the town to junction 8 of the M1 motorway at Buncefield, and running parallel to the M1 until junction 7, heading south of St Albans, east through Hatfield, Hertford, then across the A10 and into Essex through Harlow, Chipping Ongar and Chelmsford before terminating at Maldon.

Cooksmill Green: Cooksmill Green is a hamlet in the Chelmsford District of Essex, England.  It is situated approximately four miles west from the centre of the county town of Chelmsford.  The A414 road is less than one mile to the south.

Supporting paragraphs: A414 road Hertford
Answer: Hertford